CN108161273A - A kind of Al-Mg-Zn-Mn aluminium alloy welding wires and preparation method thereof - Google Patents
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires and preparation method thereof Download PDFInfo
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- CN108161273A CN108161273A CN201810183041.7A CN201810183041A CN108161273A CN 108161273 A CN108161273 A CN 108161273A CN 201810183041 A CN201810183041 A CN 201810183041A CN 108161273 A CN108161273 A CN 108161273A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 658
- 238000003466 welding Methods 0.000 title claims abstract description 566
- 238000002360 preparation method Methods 0.000 title claims abstract description 45
- 238000000137 annealing Methods 0.000 claims abstract description 90
- 230000008018 melting Effects 0.000 claims abstract description 85
- 238000002844 melting Methods 0.000 claims abstract description 85
- 238000000034 method Methods 0.000 claims abstract description 74
- 238000001192 hot extrusion Methods 0.000 claims abstract description 61
- 239000012535 impurity Substances 0.000 claims abstract description 60
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 59
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 40
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 30
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- 239000011701 zinc Substances 0.000 claims description 100
- 229910045601 alloy Inorganic materials 0.000 claims description 98
- 239000000956 alloy Substances 0.000 claims description 98
- 229910052782 aluminium Inorganic materials 0.000 claims description 84
- 239000011777 magnesium Substances 0.000 claims description 68
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 61
- 238000003756 stirring Methods 0.000 claims description 54
- 229910052725 zinc Inorganic materials 0.000 claims description 32
- 229910018131 Al-Mn Inorganic materials 0.000 claims description 30
- 229910018461 Al—Mn Inorganic materials 0.000 claims description 30
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 29
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 29
- 239000000155 melt Substances 0.000 claims description 29
- 239000004927 clay Substances 0.000 claims description 28
- 238000003723 Smelting Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 238000007872 degassing Methods 0.000 claims 1
- 229910002804 graphite Inorganic materials 0.000 claims 1
- 239000010439 graphite Substances 0.000 claims 1
- 238000007670 refining Methods 0.000 claims 1
- 238000004321 preservation Methods 0.000 abstract description 58
- 229910052751 metal Inorganic materials 0.000 abstract description 42
- 239000002184 metal Substances 0.000 abstract description 42
- 238000004519 manufacturing process Methods 0.000 abstract description 35
- 239000004615 ingredient Substances 0.000 abstract description 31
- 238000000265 homogenisation Methods 0.000 abstract description 6
- 238000011282 treatment Methods 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000002203 pretreatment Methods 0.000 abstract 1
- 239000011572 manganese Substances 0.000 description 392
- 239000000463 material Substances 0.000 description 114
- 230000000052 comparative effect Effects 0.000 description 63
- 238000005266 casting Methods 0.000 description 62
- 239000004411 aluminium Substances 0.000 description 59
- 238000004140 cleaning Methods 0.000 description 56
- 238000001816 cooling Methods 0.000 description 56
- 238000002474 experimental method Methods 0.000 description 31
- 238000012360 testing method Methods 0.000 description 31
- 239000000047 product Substances 0.000 description 29
- 238000005452 bending Methods 0.000 description 28
- 238000009749 continuous casting Methods 0.000 description 28
- 238000001125 extrusion Methods 0.000 description 28
- 238000005498 polishing Methods 0.000 description 28
- 235000019628 coolness Nutrition 0.000 description 27
- 238000010079 rubber tapping Methods 0.000 description 27
- 239000002893 slag Substances 0.000 description 27
- 238000010792 warming Methods 0.000 description 26
- 239000002245 particle Substances 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 5
- 239000010931 gold Substances 0.000 description 5
- 229910052737 gold Inorganic materials 0.000 description 5
- 238000005098 hot rolling Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000000304 warm extrusion Methods 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910018134 Al-Mg Inorganic materials 0.000 description 1
- 229910018467 Al—Mg Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910017706 MgZn Inorganic materials 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000002180 anti-stress Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/286—Al as the principal constituent
- B23K35/288—Al as the principal constituent with Sn or Zn
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
A kind of Al Mg Zn Mn aluminium alloy welding wires and preparation method thereof, belong to technical field of aluminum alloy technology.The ingredient and its mass percent that Al Mg Zn Mn aluminium alloy welding wires contain be：Zn：0.5~3.0%, Mg：4.5~5.5%, Mn：0.4~1.0%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity element total amount≤0.15%, single impurity content≤0.05%, surplus Al；Preparation method is：Melting, cast, be heated to hot extrusion after 200~400 DEG C of 2~6h of heat preservation pretreatments, 440~470 DEG C of 2~4h of heat preservation, be heated to 480~550 DEG C of 2~4h of heat preservation after it is obtained after rolling, intermediate annealing, bright cold-drawn.This method without high temperature it is long when Homogenization Treatments, it is energy saving, shorten welding wire production flow, reduce drawing broken string, drawing lumber recovery is improved, reduces production cost, moreover it is possible to refine weld metal microstructure, make weld metal that there is natrual ageing to strengthen ability, improve property of welded joint.
Description
Technical field
The invention belongs to technical field of aluminum alloy technology, and in particular to a kind of Al-Mg-Zn-Mn aluminium alloy welding wires and its preparation side
Method.
Background technology
Aluminium alloy element is much by being welded in practical applications, and the aluminum alloy junction component after welding is generally no longer
It is heat-treated and is directly used, to ensure welding structural element comprehensive performance, usually require that welded joints in aluminium alloy is not required to carry out
Higher intensity, plasticity and corrosion stability can be had by strengthening heat treatment.At present, the widely used welding wire of Welded is mainly
5356 aluminium alloy welding wires, this kind of welding wire mainly weld the higher aluminium alloy of some intensity, especially medium weldability type 7xxx systems aluminium
Alloy, but existing 5356 aluminium alloy welding wire be commonly present weld metal without natrual ageing ability, intensity is relatively low and substrate intensity
Differ larger, it is impossible to the problem of meeting using aluminum alloy welding connection member requirement.Therefore, Modern aluminum alloys welding field is urgent
Exploitation is needed without strengthening heat treatment with regard to that can make welded unit especially welding point that there is good strength, plasticity and corrosion resistance phase
Matched novel aluminum alloy component of weld wire.
In addition, traditional high-quality aluminum alloy welding wire is typically to be made by Direct Chill Casting (abbreviation DC castings)
Standby aluminium alloy welding wire ingot casting, (left and right for 24 hours) Homogenization Treatments, then pass through extruding when then progress high temperature (550 DEG C or so) is long
Or rolling obtains welding wire line base, line base carries out bright cold-drawn again after 420 DEG C of annealings, final to obtain finished product welding wire.Wherein,
Homogenization Treatments process is the link other than alloy melting during most consumption energy consumption in high-quality production process of welding wire, is worth noting
Be during Homogenization Treatments it also occur that the nodularization of superfluous crystalline phase and growing up, be unfavorable for follow-up thermal deformation and cold deformation add
Work can also influence welding process arc stability.
Invention content
The object of the present invention is to provide a kind of Al-Mg-Zn-Mn aluminium alloy welding wires and preparation method thereof, the Al-Mg-Zn-Mn
Other than containing Mg, it is micro- can also to refine weld metal containing a certain amount of Mn and Zn, Mn element for the ingredient of aluminium alloy welding wire
Tissue, Zn elements can make the ability that there is weld metal natrual ageing η phases are precipitated, so as to improve strength of welded joint, solve to adopt
The problem of strength of welded joint occurred when welding 7xxx line aluminium alloy base materials with 5356 aluminium alloy welding wires is relatively low.
The preparation method of new A l-Mg-Zn-Mn aluminium alloy welding wires of the present invention, need not move through high temperature it is long when Homogenization Treatments,
And low-temperature short-time pretreatment is directly over to regulate and control the precipitation of the particle of disperse phase containing Mn, then directly obtained using high warm extrusion
Aluminium alloy extruded line bar obtains aluminium alloy wire base using high temperature hot rolling, with energy saving, shortening welding wire production flow, reduces
The phenomenon that drawing process interrupt line, improves drawing lumber recovery, welding wire production cost is greatly lowered；New A l-Mg- obtained
Superfluous crystalline phase particle size in Zn-Mn aluminium alloy welding wires is tiny, even dispersion distribution, not only contributes to improve welding wire finished product
Rate, and can ensure arc stability in welding process, while also ensure weld metal intensity so as to improve by the way that η phases are precipitated
The comprehensive performance of welding point.
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires of the present invention, the ingredient and its mass percent contained are respectively：Zn：
0.5~3.0%, Mg：4.5~5.5%, Mn：0.4~1.0%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤
0.25%, other impurity element total amount≤0.15%, single impurity content≤0.05%, surplus Al；
A diameter of 1.2mm of the Al-Mg-Zn-Mn aluminium alloy welding wires.
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires of the present invention, includes the following steps：
(1) alloy melting
In resistance furnace, commercial-purity aluminium is first added in, industrial-purity zinc is added in when Al semi-moltens, is melted when Al+Zn is whole, together
When, when Al+Zn melt temperatures reach 750 DEG C~770 DEG C, Al-Mn intermediate alloys are added in, when intermediate alloy all fusings, are stirred
Melt is mixed, when Al+Zn+Mn melt temperatures reach 710 DEG C~730 DEG C, pure magnesium is added in, is sufficiently stirred；Then slag making, remove
Gas refines, and has a power failure, and stands melt；Tapping casting when melt temperature is 710 DEG C~730 DEG C；
(2) prepared by ingot casting
By melt by direct water-cooling semi-continuous casting, Al-Mg-Zn-Mn aluminium alloy cast ingots are made；
(3) pretreatment and hot extrusion
Al-Mg-Zn-Mn aluminium alloy cast ingots are heated to 200 DEG C~400 DEG C, after keeping the temperature 2h~6h, are directly warming up to 440
DEG C~470 DEG C of heat preservation 2h~4h progress hot extrusions, extrusion ratio is 10~50, obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn；
(4) it rolls
The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 480 DEG C~550 DEG C, is rolled, obtained after keeping the temperature 2h~4h
To the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm；Wherein, rolling total deformation is 80%~94%；
(5) intermediate annealing
Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 400 DEG C~440 DEG C, heat preservation 1h~
2h, furnace cooling obtain the annealed state welding wire line base of a diameter of 3.5mm；
(6) bright cold-drawn
The annealed state welding wire line base of a diameter of 3.5mm is once stripped off the skin, to the annealed state welding wire line base after stripping off the skin into
Row multi pass drawing, simultaneously take-up into disk, obtains the Al-Mg-Zn-Mn aluminium alloy welding wires of a diameter of 1.2mm to cleaning welding wire.
In the step (1), the alloy melting is carried out using graphite-clay crucible in resistance furnace.
In the step (2), a diameter of 90~130mm of the Al-Mg-Zn-Mn aluminium alloy cast ingots.
In the step (3), a diameter of 8~14mm of the aluminium alloy extruded line bars of the Al-Mg-Zn-Mn.
In the step (3), handled before aluminium alloy cast ingot hot extrusion without high temperature homogenizing annealing, but through 200 DEG C
The pretreatment of~400 DEG C × 2h~6h.
In the step (3), aluminium alloy cast ingot passes through cropping milling surface treatment before squeezing.
In the step (4), the rolling carries out 4~6 passes.
In the step (4), preferably, the aluminium alloy extruded line bars of Al-Mg-Zn-Mn, through 5 passages by a diameter of
10mm line bars are rolling to a diameter of 3.5mm lines base.
In the step (6), the drawing process of aluminium alloy welding wire is bright-drawing, preferably, by a diameter of 3.5mm
Annealed state welding wire line base is first stripped off the skin by flaying machine to the 3.2mm annealed state welding wire line bases of diameter, the drawing, carries out 7~8
Secondary drawing, passage drawing elongation percentage are 1.1~1.6.
The alloying elements such as suitable Mg, Zn, Mn are added in welding wire of the present invention, and it specifically act as：
The effect of Mg：Mg is main adding elements in welding wire, has β phases A1 in A1 matrixes in fusion process3Mg2Eutectic
Tissue is precipitated, this eutectic phase both can Dispersed precipitate in crystals, play the role of dispersion-strengtherning.Alloy strength can contain with Mg
The raising of amount and improve, but plasticity can decline therewith, but its plasticity will not be made excessively to reduce, the Mg meetings of usual high-content
It dissolves in and solid solution is formed in aluminum substrate, so as to have the function that solution strengthening, improve the intensity of welding point.
The effect of Zn：Zinc and magnesium are added in simultaneously in aluminium, hardening constituent (MgZn can be formed2) phase, alloy is generated apparent
Invigoration effect, improve weld metal natrual ageing strengthen ability, so as to ensure the intensity of welding point.
The effect of Mn：Mn elements play microalloying, Strengthening and Toughening, can improve the anti-stress corrosion performance of alloy.Mn is not
The grain structure of refinement welding wire ingot casting is only capable of, reduces the illeffects of Fe, improves recrystallization temperature, Al-Mg series solder wires is prevented to close
The recrystallization process of gold, and Mn can also refine an alloy phase in weld metal crystal grain, refinement weld metal；In addition
Al6Mn Resistance of Weld Metal has certain invigoration effect.The addition of Mn can be such that Mg phases precipitate uniformly, so as to reduce aluminum alloy welding
The corrosion susceptibility of connector, the stress-corrosion-cracking resistance that can particularly enable aluminum alloy to welding point are improved.With
The raising of Mn contents, when Mn contents reach 1.5%, manganese content has been in alumal phasor manganese in αsolidsolution at this time
In maxima solubility or so, although Al can be precipitated in almag to the maximum extent6Mn dispersoid particles, so as to carry
High weld strength, but be easy to be precipitated the extremely coarse primary phase containing manganese alloy of size, extremely coarse primary of this size
The plastic deformation ability of alloy relative wire, welding performance and welded joints in aluminium alloy performance are unfavorable.Therefore, aluminium of the present invention closes
The Mn contents of gold solder silk are 0.4%~1.0%.
The present invention provides a kind of Al-Mg-Zn-Mn aluminium alloy welding wires ingredients and preparation method thereof, and advantage is：
(1) present invention adds a certain amount of Zn and Mn, Mn element can on this basis using 5356 aluminium alloy welding wires as female ingredient
To refine weld metal microstructure, while the Zn added in, make there are a large amount of Zn elements to pass through in welding point weld metal
η phases are precipitated in natrual ageing, enhance weld metal, improve the intensity and mechanical property of welding point, solve the conjunction of 5356 aluminium
The problem of strength of joint is relatively low when gold solder wire bond connects 7xxx line aluminium alloys.
(2) present invention while also adds a certain amount of Mn, Mn into 5356 aluminium alloy welding wires other than adding a certain amount of Zn
In welding wire formed submicron order disperse phase particle, this welding wire in the welding process, submicron order disperse phase particle therein
The core of heterogeneous forming core, can effectively refine Microstructure of Weld Metal, significantly improve weldering when can become weld seam molten pool metal solidification and crystallization
Connector comprehensive mechanical property.
(3) present invention is for DC cast aluminium alloy gold welding wire ingot castings, remove high temperature it is long when Homogenization Treatments process procedure it is direct
, can be significantly energy saving after hot extrusion present invention process removes homogenizing cast ingot process procedure, shorten technological process, improve
Production efficiency, high warm extrusion combination high temperature hot rolling are conducive to superfluous crystalline phase particle small and dispersed and are distributed evenly in α-Al bases
In body, drawing process interrupt line phenomenon is reduced, is conducive to improve the lumber recovery of follow-up bright-drawing, so as to which welding wire be greatly lowered
Production cost.
(4) present invention carries out low-temperature short-time pretreatment before hot rolling, is conducive to for DC cast aluminium alloy gold welding wire ingot castings
The equally distributed Al of small and dispersed that takes measurements greatly is precipitated in alloy cast ingot6Mn disperse phase particles, this disperse phase particle can change
The plasticity of kind aluminium alloy welding wire so as to improve aluminium alloy welding wire yield rate, and is conducive to improve welding wire welding performance and welding
Joint performance.
(5) present invention process can be implemented on existing aluminium alloy welding wire production line, without changing existing tooling, it is not necessary to increase
Oil (gas) filling device and technology investment, it is simple to operate feasible.
(6) present invention makes solvable crystallization phased soln, superfluous crystalline phase particle side by high warm extrusion combination high temperature hot rolling
Boundary is round and smooth, nodularization, obtain superfluous crystalline phase particle edges are round and smooth, small and dispersed be distributed evenly in it is novel in α-Al matrixes
Al-Mg-Zn-Mn aluminium alloy welding wires so as to not only increase the yield rate of Al-Mg-Zn-Mn aluminium alloy welding wires, ensure that welding
Stability, while also advantageously improve welding point comprehensive performance.Finally develop a kind of novel low-cost high-quality Al-Mg-
There is excellent welding performance can simultaneously significantly improve welding for Zn-Mn aluminium alloy welding wires, new A l-Mg-Zn-Mn aluminium alloy welding wires
Connector comprehensive performance, the economic results in society brought therefrom are considerable.
(7) this new A l-Mg-Zn-Mn can also simultaneously enable aluminum alloy to welding point with good with good welding performance
Good comprehensive performance can be widely applied to welding 3xxx systems, 4xxx systems, 5xxx systems, 6xxx systems and 7xxx line aluminium alloy components.
Specific embodiment
With reference to embodiment, the present invention is described in further detail.
In following embodiment, except specified otherwise, the reagent is purchased in market.Wherein, during alloy melting is raw materials used
Al is the Al of 99.75wt.%；Mg is technical pure Mg, purity 99.9wt.%；Zn is technical pure Zn, purity 99.9wt.%；
Mn is Al-Mn intermediate alloys, and specially the mass percent of Mn is 7.8wt.%.
In following embodiment, 7N01 aluminium alloy sheet weld connector slow strain rate tension experiments are the NaCl solutions 3.5%
Under environment, rate of extension is 9 × 10-6mm-1。
In following embodiment, 7N01 aluminium alloy sheet weld connector hardness tests position is Weld pipe mill.
In following embodiment, during alloy melting, in order to reduce aluminium alloy melt surface tension, contribute to bubble hydrogen certainly
By escaping, in fusion process, after adding in Al-Mn intermediate alloys, coverture is added in bath surface, what following embodiment was selected
Coverture is commercial No. two smelting agents, and coverture addition, which is subject to, can cover the minimum of entire reaction melt surface.
Embodiment 1
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：2.99%,
Mg：5.45%, Mn：0.98%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, the Al-Mg-Zn-Mn aluminium alloy welding wires
A diameter of 1.2mm.
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 750 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 730 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 710 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
90mm；
(3) pretreatment and hot extrusion：Al-Mg-Zn-Mn aluminium alloy cast ingots are heated to 400 DEG C, are directly heated up after keeping the temperature 2h
Hot extrusion is carried out after to 440 DEG C of heat preservation 2h, extrusion ratio 12 obtains a diameter of aluminium alloy extruded line bars of 8mm Al-Mg-Zn-Mn；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 550 DEG C, after keeping the temperature 2h, are directly rolled through 4 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 80.86%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 440 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Comparative example 1
Using 5356 aluminium alloy welding wire of commercialization of a diameter of 1.2mm use in embodiment 1 using manufactured in the present embodiment
The identical MIG welding procedures welding 7N01 aluminum alloy plate materials of Al-Mg-Zn-Mn aluminium alloy welding wires, include the following steps：
(1) welding fabrication：Using the 7N01 planks of 4mm thickness as base material bevel, using commercialization after polishing cleaning groove
5356 aluminium alloy welding wire MIG welding procedures weld 7N01 planks, obtain 7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：The smooth sample of 7N01 aluminium alloy sheet welds connector made from comparative example is natural
Timeliness stretched after 36 days, is bent and slow strained tensile experiment, and hardness test is carried out to Weld pipe mill.
The smooth sample of 7N01 aluminium alloy sheet welds connector made from comparative example 1 is stretched, is bent and strained slowly drawing
Experiment is stretched, hardness test is carried out to Weld pipe mill, related performance indicators data are as shown in table 1, and 7N01 aluminium made from comparative example 1 closes
The bending property of golden plate material welding point is qualified.
Comparative example 2
A kind of preparation method of Al-4.92Mg-1.50Mn aluminium alloy welding wires, includes the following steps：
(1) prepared by ingot casting：Al-4.92Mg-1.5Mn aluminium alloy cast ingots, diameter are prepared by direct water-cooling semi-continuous casting
For 110mm, ingot chemistry is：Mg：4.92%, Mn：1.50%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%,
Si≤0.25%, other impurity element total amount≤0.15%, single impurity content≤0.05%, surplus Al；
(2) homogenizing cast ingot：Ingot casting is placed, 495 DEG C are heated in cyclone furnace, heat preservation is for 24 hours；
(3) hot extrusion：Aluminium alloy cast ingot is heated to 460 DEG C, carries out hot extrusion after keeping the temperature 2h, extrusion ratio 30 obtains
The aluminium alloy extruded line bars of Al-4.92Mg-1.50Mn of a diameter of 10mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-4.92Mg-1.50Mn are heated to 450 DEG C, after keeping the temperature 2h, directly through 5
Passage rolls into the Al-4.92Mg-1.50Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 87.75%；
(5) intermediate annealing：Al-4.92Mg-1.50Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 440 DEG C,
1h furnace coolings are kept the temperature, obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-4.92Mg-1.50Mn aluminium into disk
Alloy welding wire；
It is welded, is as follows with Al-4.92Mg-1.50Mn aluminium alloy welding wires prepared by this comparative example：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-4.92Mg-1.50Mn aluminium alloy welding wires made from this comparative example are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
Obtain 7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：The Al-4.92Mg-1.50Mn aluminium alloy welding wires of example preparation will be applied using this comparison
The smooth sample of 7N01 aluminium alloy sheet welds connector obtained stretched, is bent and slow strain rate tension experiment, to Weld pipe mill
Metal carries out hardness test.The smooth sample of 7N01 aluminium alloy sheet welds connector made from comparative example 2 is stretched, be bent and
Slow strain rate tension experiment carries out hardness test to Weld pipe mill, and related performance indicators data are as shown in table 1, made from comparative example 2
The bending property of 7N01 aluminium alloy sheet weld connectors is qualified.
Embodiment 2
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：2.99%,
Mg：5.45%, Mn：0.98%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, the Al-Mg-Zn-Mn aluminium alloy welding wires
A diameter of 1.2mm.
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：By graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 755 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 725 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 715 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
100mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 350 DEG C, 470 DEG C of heat preservations are directly warming up to after keeping the temperature 3h
Carry out hot extrusion after 3h, extrusion ratio 25 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 10mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 540 DEG C, after keeping the temperature 3h, are directly rolled through 5 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 87.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 430 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 3
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：1.91%,
Mg：5.39%, Mn：1.01%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, the Al-Mg-Zn-Mn aluminium alloy welding wires
A diameter of 1.2mm.
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting, when Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 760 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 720 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 725 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
110mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 300 DEG C, 450 DEG C of heat preservations are directly warming up to after keeping the temperature 4h
Carry out hot extrusion after 3h, extrusion ratio 21 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 12mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 530 DEG C, after keeping the temperature 4h, are directly rolled through 6 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 400 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 4
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：1.91%,
Mg：5.39%, Mn：1.01%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire are a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 765 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 710 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 725 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
120mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 250 DEG C, 460 DEG C of heat preservations are directly warming up to after keeping the temperature 5h
Carry out hot extrusion after 3h, extrusion ratio 18 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 14mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 520 DEG C, after keeping the temperature 3h, are directly rolled through 4 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 93.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 420 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 5
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：1.03%,
Mg：5.48%, Mn：0.95%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 770 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 715 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 730 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
130mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 200 DEG C, 460 DEG C of heat preservations are directly warming up to after keeping the temperature 6h
Carry out hot extrusion after 2h, extrusion ratio 26 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 8mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 510 DEG C, after keeping the temperature 4h, are directly rolled through 5 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 80.86%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 410 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 6
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：1.03%,
Mg：5.48%, Mn：0.95%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 765 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 720 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 725 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
90mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 400 DEG C, 450 DEG C of heat preservations are directly warming up to after keeping the temperature 6h
Carry out hot extrusion after 3h, extrusion ratio 20 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 10mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 500 DEG C, after keeping the temperature 2h, are directly rolled through 6 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 87.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 420 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 7
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：2.80%,
Mg：5.38%, Mn：0.58%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 760 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 725 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 720 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
100mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 350 DEG C, 470 DEG C of heat preservations are directly warming up to after keeping the temperature 5h
Carry out hot extrusion after 2h, extrusion ratio 17 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 12mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 490 DEG C, after keeping the temperature 4h, are directly rolled through 5 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 91.49%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 410 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 8
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：2.80%,
Mg：5.38%, Mn：0.58%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 755 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 730 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 715 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
110mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 300 DEG C, 440 DEG C of heat preservations are directly warming up to after keeping the temperature 4h
Carry out hot extrusion after 2h, extrusion ratio 15 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 14mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 480 DEG C, after keeping the temperature 4h, are directly rolled through 4 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 93.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 400 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 9
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：1.76%,
Mg：5.26%, Mn：0.45%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 750 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 710 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 710 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
120mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 250 DEG C, 460 DEG C of heat preservations are directly warming up to after keeping the temperature 3h
Carry out hot extrusion after 2h, extrusion ratio 25 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 12mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 490 DEG C, after keeping the temperature 2h, are directly rolled through 5 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 91.49%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 400 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, simultaneously take-up into disk, obtains Al-Mg-Zn-Mn aluminium to cleaning welding wire
Alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 10
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：1.76%,
Mg：5.26%, Mn：0.45%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 755 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 715 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 730 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
130mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 200 DEG C, 450 DEG C of heat preservations are directly warming up to after keeping the temperature 2h
Carry out hot extrusion after 4h, extrusion ratio 42 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 10mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 500 DEG C, after keeping the temperature 4h, are directly rolled through 6 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 87.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 440 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 11
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：0.85%,
Mg：5.30%, Mn：0.42%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 760 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 720 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 725 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
90mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 200 DEG C, 450 DEG C of heat preservations are directly warming up to after keeping the temperature 6h
Carry out hot extrusion after 3h, extrusion ratio 12 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 8mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 510 DEG C, after keeping the temperature 3h, are directly rolled through 4 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 80.86%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 420 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 12
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：0.85%,
Mg：5.30%, Mn：0.42%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 765 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 725 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 720 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
100mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 250 DEG C, 460 DEG C of heat preservations are directly warming up to after keeping the temperature 5h
Carry out hot extrusion after 2h, extrusion ratio 25 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 10mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 520 DEG C, after keeping the temperature 3h, are directly rolled through 5 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 87.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 430 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 13
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：2.50%,
Mg：4.98%, Mn：0.63%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 770 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 730 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 715 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
110mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 300 DEG C, 440 DEG C of heat preservations are directly warming up to after keeping the temperature 4h
Carry out hot extrusion after 3h, extrusion ratio 21 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 12mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 530 DEG C, after keeping the temperature 2h, are directly rolled through 6 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 91.49%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 430 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 14
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：2.50%,
Mg：4.98%, Mn：0.63%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 750 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 725 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 710 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
120mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 350 DEG C, 470 DEG C of heat preservations are directly warming up to after keeping the temperature 5h
Carry out hot extrusion after 4h, extrusion ratio 18 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 14mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 540 DEG C, after keeping the temperature 4h, are directly rolled through 6 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 93.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 400 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 15
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：1.54%,
Mg：5.01%, Mn：0.74%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 755 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 720 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 715 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
130mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 400 DEG C, 450 DEG C of heat preservations are directly warming up to after keeping the temperature 6h
Carry out hot extrusion after 3h, extrusion ratio 26 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 8mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 550 DEG C, after keeping the temperature 4h, are directly rolled through 5 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 80.86%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 410 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：(1) it is welded into
Type：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, Al- made from the present embodiment is used after polishing cleaning groove
Mg-Zn-Mn aluminium alloy welding wires are welded 7N01 aluminum alloy plate materials, are obtained 7N01 aluminium alloy sheet welds and connect by MIG welding procedures
Head；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 16
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：1.54%,
Mg：5.01%, Mn：0.74%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 760 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 715 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 720 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
90mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 400 DEG C, 460 DEG C of heat preservations are directly warming up to after keeping the temperature 2h
Carry out hot extrusion after 2h, extrusion ratio 20 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 10mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 540 DEG C, after keeping the temperature 3h, are directly rolled through 4 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 87.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 430 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 17
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：2.32%,
Mg：4.58%, Mn：0.89%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 765 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 710 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 725 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
100mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 350 DEG C, 460 DEG C of heat preservations are directly warming up to after keeping the temperature 3h
Carry out hot extrusion after 3h, extrusion ratio 17 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 12mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 530 DEG C, after keeping the temperature 3h, are directly rolled through 4 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 91.49%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 400 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 18
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：2.32%,
Mg：4.58%, Mn：0.89%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 770 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 730 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 730 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
110mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 300 DEG C, 450 DEG C of heat preservations are directly warming up to after keeping the temperature 4h
Carry out hot extrusion after 3h, extrusion ratio 15 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 14mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 520 DEG C, after keeping the temperature 2h, are directly rolled through 5 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 93.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 440 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 19
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：2.13%,
Mg：4.75%, Mn：0.47%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 765 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 725 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 725 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
120mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 250 DEG C, 470 DEG C of heat preservations are directly warming up to after keeping the temperature 5h
Carry out hot extrusion after 3h, extrusion ratio 22 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 8mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 510 DEG C, after keeping the temperature 4h, are directly rolled through 6 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 80.86%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 410 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 20
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：2.13%,
Mg：4.75%, Mn：0.47%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 760 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 720 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 720 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
130mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 200 DEG C, 440 DEG C of heat preservations are directly warming up to after keeping the temperature 6h
Carry out hot extrusion after 4h, extrusion ratio 42 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 10mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 500 DEG C, after keeping the temperature 4h, are directly rolled through 4 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 87.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 440 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 21
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：1.25%,
Mg：4.52%, Mn：0.59%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 755 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 715 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 715 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
90mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 200 DEG C, 460 DEG C of heat preservations are directly warming up to after keeping the temperature 2h
Carry out hot extrusion after 3h, extrusion ratio 14 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 12mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 490 DEG C, after keeping the temperature 2h, are directly rolled through 5 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 91.49%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 420 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 22
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：1.25%,
Mg：4.52%, Mn：0.59%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 750 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 710 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 715 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
100mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 250 DEG C, 450 DEG C of heat preservations are directly warming up to after keeping the temperature 3h
Carry out hot extrusion after 2h, extrusion ratio 13 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 14mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 480 DEG C, after keeping the temperature 4h, are directly rolled through 6 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 93.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 440 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 23
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：0.51%,
Mg：4.76%, Mn：0.81%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 755 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 715 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 720 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
110mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 300 DEG C, 450 DEG C of heat preservations are directly warming up to after keeping the temperature 4h
Carry out hot extrusion after 3h, extrusion ratio 15 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 14mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 490 DEG C, after keeping the temperature 3h, are directly rolled through 6 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 93.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 420 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test.Related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 24
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：0.51%,
Mg：4.76%, Mn：0.81%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 760 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 720 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 725 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
120mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 350 DEG C, 460 DEG C of heat preservations are directly warming up to after keeping the temperature 5h
Carry out hot extrusion after 2h, extrusion ratio 25 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 12mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 500 DEG C, after keeping the temperature 4h, are directly rolled through 5 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 91.49%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 410 DEG C, heat preservation
1h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test.Related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 25
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：0.72%,
Mg：4.53%, Mn：0.58%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 765 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 725 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 730 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
130mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 400 DEG C, 440 DEG C of heat preservations are directly warming up to after keeping the temperature 6h
Carry out hot extrusion after 3h, extrusion ratio 30 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 10mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 480 DEG C, after keeping the temperature 3h, are directly rolled through 4 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm, deflection 87.75%；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 400 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 8 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.5mm→
2.2mm → 1.9mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn into disk
Aluminium alloy welding wire；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test.Related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
Embodiment 26
A kind of Al-Mg-Zn-Mn aluminium alloy welding wires, the ingredient and its mass percent contained are respectively：Zn：0.72%,
Mg：4.53%, Mn：0.58%, Ti≤0.15%, Cr≤0.15%, Fe≤0.25%, Si≤0.25%, other impurity elements
Total amount≤0.15%, single impurity content≤0.05%, surplus Al, Al-Mg-Zn-Mn aluminium alloy welding wire it is a diameter of
1.2mm。
A kind of preparation method of Al-Mg-Zn-Mn aluminium alloy welding wires, includes the following steps：
(1) alloy melting：Using graphite-clay crucible, the melting in resistance furnace, is firstly added commercial-purity aluminium, treats aluminium fritting
Industrial-purity zinc is added in when melting；When Al+Zn all melts, melt temperature adds few up to addition Al-Mn intermediate alloys at 770 DEG C
Coverture is measured, when intermediate alloy whole fusing stirring melt, pure magnesium is added in when melt temperature reaches 730 DEG C, and fully
Stirring；Then slag making, refinery by de-gassing have a power failure, and stand melt；Tapping casting when melt temperature is 725 DEG C；
(2) prepared by ingot casting：Al-Mg-Zn-Mn aluminium alloy cast ingots are prepared by direct water-cooling semi-continuous casting, it is a diameter of
90mm；
(3) pretreatment and hot extrusion：Aluminium alloy cast ingot is heated to 300 DEG C, 470 DEG C of heat preservations are directly warming up to after keeping the temperature 4h
Carry out hot extrusion after 4h, extrusion ratio 13 obtains the aluminium alloy extruded line bars of Al-Mg-Zn-Mn of a diameter of 8mm；
(4) it rolls：The aluminium alloy extruded line bars of Al-Mg-Zn-Mn are heated to 490 DEG C, after keeping the temperature 2h, are directly rolled through 5 passages
Into the Al-Mg-Zn-Mn aluminium alloy wire bases of a diameter of 3.5mm；
(5) intermediate annealing：Al-Mg-Zn-Mn aluminium alloy wires base is subjected to intermediate annealing, annealing temperature is 430 DEG C, heat preservation
2h furnace coolings obtain annealed state welding wire line base；
(6) bright cold-drawn：Annealed state welding wire line base is first stripped off the skin by flaying machine to a diameter of 3.2mm, it then will be a diameter of
The line base of 3.2mm is drawn into finished product welding wire through 7 passages, every time drawing parameter is as follows：3.2mm→2.8mm→2.4mm→
2.0mm → 1.6mm → 1.4mm → 1.27mm → 1.2mm, cleaning welding wire and take-up obtain Al-Mg-Zn-Mn aluminum alloy weldings into disk
Silk；
It is welded, is as follows with Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment：
(1) welding fabrication：Using the 7N01 aluminum alloy plate materials of 4mm thickness as base material bevel, used after polishing cleaning groove
Al-Mg-Zn-Mn aluminium alloy welding wires made from the present embodiment are welded 7N01 aluminum alloy plate materials, are obtained by MIG welding procedures
7N01 aluminium alloy sheet weld connectors；
(2) property of welded joint is tested：It will use made from Al-Mg-Zn-Mn aluminium alloy welding wires manufactured in the present embodiment
The smooth sample of 7N01 aluminium alloy sheet weld connectors stretched, is bent and slow strain rate tension experiment, to weld seam central metal into
Row hardness test, related performance indicators data are as shown in table 1.7N01 aluminium alloy sheet welds connector is curved made from the present embodiment
Qu Xingneng is with being respectively adopted commercial 5356 aluminium alloy welding wires (comparative example 1) and novel aluminum alloy Al-4.92Mg-1.50Mn welding wires
(comparative example 2) is identical by the bending property of the welding point of 7N01 aluminum alloy plate materials that identical MIG welding procedures are welded.
1 embodiment of table and comparative example welding point Weld pipe mill hardness number, tensile property and anticorrosion stress-resistant performance
By table 1 as it can be seen that welding 7N01 aluminium alloy plates by 5356 aluminium alloy welding wire MIG prepared by conventional method with comparative example 1
Al-4.92Mg-1.50Mn aluminium alloy welding wires MIG welding 7N01 aluminum alloy plate materials prepared by the welding point and conventional method of material
The mechanical performance index and corrosion resistance of welding point are compared, the Al-Mg-Zn-Mn aluminum alloy weldings prepared using present invention process
The mechanical property and corrosion resistance of the welding point of silk MIG welding 7N01 aluminum alloy plate materials all significantly improve.This is fully embodied
The value of the present invention.
Claims (8)
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| CN111112875A (en) * | 2019-12-31 | 2020-05-08 | 上海交通大学 | Containing TiB2Granular aluminum alloy welding wire and preparation method thereof |
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| CN112281032A (en) * | 2020-10-20 | 2021-01-29 | 中国兵器科学研究院宁波分院 | A kind of preparation method of aluminum alloy welding material |
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| CN109967915B (en) * | 2019-04-19 | 2020-12-18 | 中国兵器科学研究院宁波分院 | Scandium-containing aluminum alloy welding wire for high-performance aluminum alloy |
| CN111112875A (en) * | 2019-12-31 | 2020-05-08 | 上海交通大学 | Containing TiB2Granular aluminum alloy welding wire and preparation method thereof |
| CN111112875B (en) * | 2019-12-31 | 2021-09-28 | 上海交通大学 | Aluminum alloy welding wire containing TiB2 particles and preparation method thereof |
| CN112157335A (en) * | 2020-09-29 | 2021-01-01 | 灵璧县飞松机械制造有限责任公司 | Welding method of movable hydraulic lifter made of aluminum alloy |
| CN112281032A (en) * | 2020-10-20 | 2021-01-29 | 中国兵器科学研究院宁波分院 | A kind of preparation method of aluminum alloy welding material |
| CN112831735A (en) * | 2020-12-30 | 2021-05-25 | 江苏理工学院 | A kind of preparation method of high-strength aluminum alloy wire/strip |
| CN112831735B (en) * | 2020-12-30 | 2022-07-08 | 江苏理工学院 | A kind of preparation method of high-strength aluminum alloy wire/strip |
| CN115609185A (en) * | 2022-10-28 | 2023-01-17 | 东北轻合金有限责任公司 | Corrosion-resistant Al-Mg-Er-Zr alloy welding wire and preparation method thereof |
| CN115609185B (en) * | 2022-10-28 | 2024-01-30 | 东北轻合金有限责任公司 | Corrosion-resistant Al-Mg-Er-Zr alloy welding wire and preparation method thereof |
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