CN103949801B - A kind of welding wire - Google Patents
A kind of welding wire Download PDFInfo
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- CN103949801B CN103949801B CN201410207776.0A CN201410207776A CN103949801B CN 103949801 B CN103949801 B CN 103949801B CN 201410207776 A CN201410207776 A CN 201410207776A CN 103949801 B CN103949801 B CN 103949801B
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- 238000003466 welding Methods 0.000 title claims abstract description 57
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 84
- 239000000956 alloy Substances 0.000 claims abstract description 84
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002893 slag Substances 0.000 claims abstract description 20
- 238000002360 preparation method Methods 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 13
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 10
- 239000001257 hydrogen Substances 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 10
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 10
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 10
- 238000005554 pickling Methods 0.000 claims abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 9
- 229910004261 CaF 2 Inorganic materials 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 24
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 4
- 238000010622 cold drawing Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000007519 figuring Methods 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- -1 prepare burden Substances 0.000 claims description 2
- 239000000945 filler Substances 0.000 abstract description 29
- 229910052751 metal Inorganic materials 0.000 abstract description 28
- 239000002184 metal Substances 0.000 abstract description 28
- 229910052748 manganese Inorganic materials 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 15
- 239000011651 chromium Substances 0.000 description 10
- 239000010936 titanium Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910001092 metal group alloy Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 235000012041 food component Nutrition 0.000 description 1
- 239000005417 food ingredient Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening 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
- B23K35/40—Making wire or rods for soldering or welding
-
- 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
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
- B23K35/304—Ni as the principal constituent with Cr as the next major constituent
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention relates to a kind of nickel-base alloy bare welding filler metal, the component of its alloy and mass percent are C:0.4% ~ 0.45%, Mn:1.0% ~ 1.5%, Si:0.15% ~ 1.2%, P≤0.025%, S≤0.02%, Cr:28% ~ 30%, Ni:49% ~ 51%, Co≤0.1%, Mo≤0.1%, Ti≤0.1%, Al≤0.1%, W:4.0% ~ 5.0%, all the other are iron; Preparation method is moved back by alloy melting-electroslag remelting-hot forging-hot-roll annealing-pickling, reconditioning-cold drawn-hydrogen, and electroslag remelting adopts CaF
2, Al
2o
3, CaO slag system.The preparation method of nickel-base alloy bare welding filler metal of the present invention can obtain the comparatively thin welding wire that performance meets the demands, and lumber recovery is high.
Description
Technical field
The present invention relates to a kind of welding wire, belong to technical field of alloy.
Background technology
Cr28Ni48W5 nickel-base alloy, has very high resistance to elevated temperatures, can make welding wire for repairing refractory metal material.But chromium constituent content is higher and containing W elements in Cr28Ni48W5 alloy, the constituent content such as aluminium, titanium is lower, and therefore Cr28Ni48W5 alloy working plasticity is poor, is a kind of high temperature solder wire material of difficulty distortion, be generally used for the welding wire that manufacture is thicker, when welding wire is thinner, lumber recovery is extremely low.
Chinese patent literature CN101249591 discloses a kind of nickel-based welding wire and preparation technology thereof, and this welding wire nickel content is high, and not containing W elements, it is made by vacuum metling-electroslag remelting-forging-hot rolling-wire drawing-annealing process.
Chinese patent literature CN102912151 discloses a kind of ultrapure electro-slag re-melting method of high performance corrosion resistant alloy, there are following steps: by the food ingredient from molten electrode bar be by weight: Ni:25 ~ 34 part, Cr:25 ~ 29 part, Mo:2.5 ~ 4.5 part, Fe:30 ~ 45 part, through vacuum induction melting, obtained from molten electrode bar; From molten electrode bar in slag charge proportioning be by weight: CaF
2: 55 ~ 80 parts, CaO:5 ~ 25 part, Al
2o
3: 5 ~ 15 parts, slowly melt in the melting electroslag remelting slag charge of MgO:5 ~ 10 part, purify, at crystallizer again crystallization, obtain ESR ingot; ESR ingot, at the temperature of 1130 ± 5 DEG C, is forged into bar, solution treatment, obtains high performance corrosion resistant alloy.Adopt the inventive method can reduce the content of the harmful element such as sulphur, phosphorus in alloy, improve the Impurity Distribution situation of alloy, be beneficial to thinning microstructure, improve its hot-working character and lumber recovery.This welding wire nickel content is lower, and iron content is higher, and not containing W elements.
Summary of the invention
The object of this invention is to provide a kind of alloy composition, manufacturing process is optimized, can be that the nickel-base alloy of Cr28Ni48W5 is made compared with thin welding wire and the higher nickel-base alloy bare welding filler metal of lumber recovery by the trade mark.
In order to solve the problems of the technologies described above, the technical scheme realizing the object of the invention is a kind of nickel-base alloy bare welding filler metal, and it is worth by following preparation method, and the concrete steps that the method comprises are as follows:
A. alloy melting is C:0.4% ~ 0.45% according to the component of alloy and mass percent, Mn:1.0% ~ 1.5%, Si:0.15% ~ 1.2%, P≤0.025%, S≤0.02%, Cr:28% ~ 30%, Ni:49% ~ 51%, Co≤0.1%, Mo≤0.1%, Ti≤0.1%, Al≤0.1%, W:4.0% ~ 5.0%, all the other are iron, prepare burden, raw material is dropped in vaccum sensitive stove and carry out melting, pour into electrode bar;
B. electroslag remelting, adopts the electroslag remelting equipment of prior art, is carried out on the surface of electrode bar inserting in slag as consutrode after grinding process, and slag adopts CaF
2, Al
2o
3, CaO slag system, CaF in slag system
2mass percentage content be 75% ~ 85%, Al
2o
3mass percentage content be the mass percentage content of 12% ~ 18%, CaO be 4% ~ 6%, electric current 2100A ~ 2300A, steel ingot binds feeding electric current 0A ~ 1500A, and bind time 3min ~ 5min, and the cooling 5min ~ 10min that has a power failure takes off ingot, be cooled to normal temperature in atmosphere, obtain alloy pig;
C. hot forging, heating furnace alloy pig being put into initial temperature≤600 DEG C heats, and is warming up to 1210 DEG C ~ 1250 DEG C, forges, be forged into alloy preform, be cooled to normal temperature in atmosphere after insulation 50min ~ 80min;
D. hot-roll annealing, after alloy preform figuring of surface, is heated to 1080 DEG C ~ 1120 DEG C and carries out hot rolling, is rolled into the first silk material of dish, is cooled to normal temperature in atmosphere;
E. pickling, reconditioning, carry out pickling by first for dish silk material sulfuric acid, then repair polishing;
F. cold drawn, adopt existing cold-drawing process, the progressively drawing-down of first silk material will be coiled, until silk material diameter≤3mm;
G. hydrogen moves back, and the dish unit silk material after cold drawn process is warming up to 1035 DEG C ~ 1065 DEG C and carries out hydrogen and move back process, and hydrogen moves back aligning after process.
CaF in above-mentioned slag system
2mass percentage content be 80%, Al
2o
3mass percentage content be the mass percentage content of 15%, CaO be 5%.
Above-mentioned Si mass percentage content is in the alloy 0.15% ~ 0.8%.
Above-mentioned Mn mass percentage content is in the alloy 1.0% ~ 1.2%.
The diameter of above-mentioned electrode bar is 80mm.
Temperature retention time in above-mentioned steps C is 60min.
The cooling 5min that has a power failure in above-mentioned steps B takes off ingot.
In above-mentioned steps D, alloy preform is rolled into the dish unit silk material that diameter is 8mm; Cold-drawing process in described step F is according to silk material diameter: 8mm-7mm-6mm-5mm-4.2mm-3.5mm-2.8mm-2.4mm, carry out wire drawing successively and respectively when silk material diameter is 7mm and silk material diameter is 2.8mm sulfuric acid carry out pickling.
In order to solve the problems of the technologies described above, realize the present invention and a kind of nickel-base alloy bare welding filler metal obtained by the preparation method of above-mentioned nickel-base alloy bare welding filler metal is also provided.
The present invention has positive effect:
(1) the Si element in welding wire is conducive to forming oxide-film on the surface of weld seam, improves the non-oxidizability of weld seam when high temperature, simultaneously Si or good deoxidier, and can increase the mobility of slag and deposite metal.But in general Cr28Ni48W5 alloy Si content be 1% to 2%, Si too high levels easily produce formation slag inclusion, On Impact Toughness also has impact.Si element in nickel-base alloy bare welding filler metal alloy composition of the present invention has carried out strict control, is conducive to the plasticity improving material, so that alloy is processed into thinner welding wire.
(2) the Mn element in welding wire is good desulfurizing agent, is also solution strengthening element simultaneously, can improves intensity and the hardness of weld seam, but in general Cr28Ni48W5 alloy, Mn content is about 1.5%.Mn element in nickel-base alloy bare welding filler metal alloy composition of the present invention has carried out strict control, is conducive to the plasticity improving material, so that alloy is processed into thinner welding wire.
(3) nickel-base alloy bare welding filler metal alloy composition of the present invention is optimized, and the proportioning of these three essential elements of Ni, Cr, W ensure that the welding performance of welding wire.The content of the elements such as control Co, Mo, Ti, Al, the plasticity being also conducive to improving material is convenient to alloy to be processed into thinner welding wire.
(4) nickel-base alloy bare welding filler metal of the present invention strictly controls the content of Mn and Si, but Mn and Si combined deoxidation is the most effective deoxidation mode, in order to ensure while the content of Mn and Si reduces, do not affect other performances of welding wire, the present invention is in preparation process, adopt the technique of vacuum metling, be conducive to reducing and lower gas content and harmful element content, the elements such as Al, the Ti that may exist with season are not oxidizable.The present invention additionally uses electroslag remelting process in preparation process, be conducive to purifying metal, remove non-metallic inclusion significantly, pure, the dense structure of alloy, uniform composition, any surface finish after electroslag remelting, the quality and performance of alloy pig can be made to be improved, plasticity under the low temperature of alloy, room temperature and high temperature and impact flexibility are strengthened, and alloy pig being processed into comparatively thin welding wire can improve lumber recovery effectively.The slag system of electroslag remelting of the present invention is selected according to the composition of alloy, preferred CaF
2: Al
2o
3: CaO=80:15:5, thus fusing point, electrical conductivity, viscosity are all matched with alloying component, farthest can purify alloy.
(5) nickel-base alloy bare welding filler metal of the present invention additionally uses the technique that hydrogen moves back in preparation process, the hardness of welding wire can be reduced, improve plasticity, eliminate internal stress, thinning microstructure and elimination tissue odds and property, make grain structure evenly, surface is fine and smooth, bright, and welding wire is soft, without magnetic, fatigue resistance is good, stretching force is large.
(6) nickel-base alloy bare welding filler metal of the present invention adopts the trade mark to be the nickel-base alloy of Cr28Ni48W5, and by the optimization of alloying component and manufacturing process, can make the welding wire of below diameter 3mm, lumber recovery is more than 96%.
Detailed description of the invention
Embodiment 1
The nickel-base alloy bare welding filler metal of the present embodiment, the component of alloy and mass percent are C:0.41%, Mn:1.02%, Si:0.57%, P:0.02%, S:0.02%, Cr:28.32%, Ni:49.58%, Co:0.08%, Mo:0.09%, Ti:0.08%, Al:0.07%, W:4.81%, all the other are iron.
Preparation method's concrete steps of the nickel-base alloy bare welding filler metal of the present embodiment are as follows:
A. alloy melting, prepare burden according to the component of alloy and mass percent, raw material after surface derusting and greasy dirt is dropped in vaccum sensitive stove, after charging, start to vacuumize, until when pressure reaches 0.67Pa, start power transmission heating furnace charge, temperature controls at about 1600 DEG C, vacuum degree control is at 0.1 ~ 1Pa, after furnace charge is melting down, add appropriate blocky graphite immediately or other high-carbon materials carry out reaction between carbon and oxygen, abundant deoxidation, degas, after volatilization field trash, add intermediate alloy fragment, add rear high-power stirring 2min, accelerate the fusing of alloy and be evenly distributed, because the volatility of Mn is stronger, generally before tapping, 5min adds, after alloying, temperature and composition qualified namely pourable, tapping temperature is 1590 DEG C.Pour into the electrode bar that diameter is 80mm.
B. electroslag remelting, adopts the electroslag remelting equipment of prior art, is carried out on the surface of electrode bar inserting in slag as consutrode after grinding process, and slag adopts CaF
2, Al
2o
3, CaO slag system, CaF in slag system
2mass percentage content be 80%, Al
2o
3mass percentage content be the mass percentage content of 15%, CaO be 5%, electric current 2100A ~ 2300A, steel ingot binds feeding electric current 0A ~ 1500A, and bind time 3min ~ 5min, and the cooling 5min that has a power failure takes off ingot, is cooled to normal temperature in atmosphere, obtains alloy pig.
C. hot forging, heating furnace alloy pig being put into initial temperature≤600 DEG C heats, and is warming up to about 1230 DEG C, forges, be forged into the square alloy preform of 50mm × 50mm, be cooled to normal temperature in atmosphere after insulation 60min.
D. hot-roll annealing, after alloy preform figuring of surface, is heated to about 1100 DEG C and carries out hot rolling, is rolled into the dish unit silk material that diameter is 8mm, is cooled to normal temperature in atmosphere.
E. pickling, reconditioning, carry out pickling by first for dish silk material sulfuric acid, then repair polishing.
F. cold drawn, adopt existing cold-drawing process, according to silk material diameter: 8mm-7mm-6mm-5mm-4.2mm-3.5mm-2.8mm-2.4mm, carry out wire drawing successively and respectively when silk material diameter is 7mm and silk material diameter is 2.8mm sulfuric acid carry out pickling.
G. hydrogen moves back, and the dish unit silk material after cold drawn process is warming up to 1050 DEG C and carries out hydrogen and move back process, and hydrogen moves back aligning after process.
Embodiment 2
The nickel-base alloy bare welding filler metal of the present embodiment, the component of alloy and mass percent are C:0.45%, Mn:1.18%, Si:0.15%, P:0.02%, S:0.02%, Cr:29.51%, Ni:50.32%, Co:0.08%, Mo:0.09%, Ti:0.08%, Al:0.07%, W:4.15%, all the other are iron.
The preparation method of the nickel-base alloy bare welding filler metal of the present embodiment is identical with embodiment 1.
Embodiment 3
The nickel-base alloy bare welding filler metal of the present embodiment, the component of alloy and mass percent are C:0.42%, Mn:1.12%, Si:0.50%, P:0.02%, S:0.02%, Cr:29.22%, Ni:50.06%, Co:0.08%, Mo:0.09%, Ti:0.08%, Al:0.07%, W:4.53%, all the other are iron.
The preparation method of the nickel-base alloy bare welding filler metal of the present embodiment is identical with embodiment 1.
Embodiment 4
The nickel-base alloy bare welding filler metal of the present embodiment, the component of alloy and mass percent are C:0.41%, Mn:1.03%, Si:0.45%, P:0.02%, S:0.02%, Cr:29.50%, Ni:50%, Co:0.03%, Mo:0.06%, Ti:0.07%, Al:0.02%, W:4.89%, all the other are iron.
The preparation method of the nickel-base alloy bare welding filler metal of the present embodiment is identical with embodiment 1.
Embodiment 5
The nickel-base alloy bare welding filler metal of the present embodiment, the component of alloy and mass percent are C:0.42%, Mn:1.10%, Si:0.33%, P:0.02%, S:0.01%, Cr:29.19%, Ni:50.68%, Co:0.03%, Mo:0.05%, Ti:0.02%, Al:0.04%, W:4.26%, all the other are iron.
The preparation method of the nickel-base alloy bare welding filler metal of the present embodiment is identical with embodiment 1.
Comparative example 1(manufactures experimently)
The nickel-base alloy bare welding filler metal of this comparative example, the component of alloy and mass percent are C:0.51%, Mn:1.40%, Si:1.78%, P:0.02%, S:0.01%, Cr:29.23%, Ni:48.68%, Co:0.02%, Mo:0.03%, Ti:0.02%, Al:0.05%, W:4.54%, all the other are iron.The nickel-base alloy bare welding filler metal of this comparative example meets the trade mark: the component requirements of Cr28Ni48W5 nickel-base alloy.
The preparation method of the nickel-base alloy bare welding filler metal of this comparative example is substantially the same manner as Example 1, and difference is: when silk material diameter is drawn to 3.5mm, pass through smoothly, but when silk material diameter is drawn to 2.8mm, frequently occurs the phenomenon broken, and cannot proceed drawing.
1, welding wire surface quality.
The nickel-base alloy bare welding filler metal any surface finish of the embodiment of the present invention 1 to 5, does not have cut, crackle, pit, pit.
2, welding technological properties.
With the nickel-base alloy bare welding filler metal of the embodiment of the present invention 1 to 5 to the 8mm corrosion resistant plate of 1Cr18Ni9Ti, carry out butt weld welding, striking is easy, and electric arc is steady, weld seam flawless.
The method of the embodiment of the present invention 1 to 5 makes the nickel-base alloy bare welding filler metal that diameter is 2.4mm, and its lumber recovery is all more than 96%, and welding performance reaches the requirement that the trade mark is the nickel-base alloy solder of Cr28Ni48W5 completely.
Nickel-base alloy bare welding filler metal of the present invention and preparation method thereof is not limited to the various embodiments described above.Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to spirit institute's apparent change of extending out of the present invention or change and are still among protection scope of the present invention.
Claims (1)
1. a welding wire, it is characterized in that it adopts following preparation method to make, the method comprises the steps:
A. alloy melting: be C:0.4% ~ 0.45% according to the component of alloy and mass percent, Mn:1.0% ~ 1.5%, Si:0.15% ~ 1.2%, P≤0.025%, S≤0.02%, Cr:28% ~ 30%, Ni:49% ~ 51%, Co≤0.1%, Mo≤0.1%, Ti≤0.1%, Al≤0.1%, W:4.0% ~ 5.0%, all the other are iron, prepare burden, raw material is dropped into after carrying out melting in vaccum sensitive stove, pour into electrode bar;
B. electroslag remelting: adopt electroslag remelting equipment, carried out on the surface of electrode bar inserting in slag as consutrode after grinding process, slag adopts CaF
2, Al
2o
3, CaO slag system, CaF in slag system
2mass percentage content be 80%, Al
2o
3mass percentage content be the mass percentage content of 15%, CaO be 5%, electric current 2100A ~ 2300A, steel ingot binds feeding electric current 0A ~ 1500A, and bind time 3min ~ 5min, and the cooling 5min ~ 10min that has a power failure takes off ingot, is cooled to normal temperature, obtains alloy pig;
C. hot forging: heating furnace alloy pig being put into initial temperature≤600 DEG C heats, and is warming up to 1210 DEG C ~ 1250 DEG C, forges after insulation 50min ~ 80min, is forged into alloy preform, is cooled to normal temperature;
D. hot-roll annealing: after alloy preform figuring of surface, is heated to 1080 DEG C ~ 1120 DEG C and carries out hot rolling, is rolled into the first silk material of dish, is cooled to normal temperature;
E. pickling, reconditioning: first for dish silk material sulfuric acid is carried out pickling, then repairs polishing;
F. cold drawn: to adopt existing cold-drawing process, the progressively drawing-down of first silk material will be coiled, until silk material diameter≤3mm;
G. hydrogen moves back: the dish unit silk material after cold drawn process is warming up to 1035 DEG C ~ 1065 DEG C and carries out hydrogen and move back process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410207776.0A CN103949801B (en) | 2014-05-17 | 2014-05-17 | A kind of welding wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410207776.0A CN103949801B (en) | 2014-05-17 | 2014-05-17 | A kind of welding wire |
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| Publication Number | Publication Date |
|---|---|
| CN103949801A CN103949801A (en) | 2014-07-30 |
| CN103949801B true CN103949801B (en) | 2016-04-20 |
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| CN105108376A (en) * | 2015-08-13 | 2015-12-02 | 江苏新航合金科技有限公司 | Nickel alloy high-temperature-resistant welding wire |
| CN110042263A (en) * | 2019-04-23 | 2019-07-23 | 丹阳市海威电热合金有限公司 | The preparation method of nickel chromium high-temperature alloy silk |
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|---|---|---|---|---|
| GB773871A (en) * | 1952-10-10 | 1957-05-01 | William Jessop And Sons Ltd | Improvements in or relating to nickel alloys |
| US4415530A (en) * | 1980-11-10 | 1983-11-15 | Huntington Alloys, Inc. | Nickel-base welding alloy |
| WO1983000883A1 (en) * | 1981-09-04 | 1983-03-17 | Yabuki, Ritsue | Heat- and abrasion-resistant tough nickel-based alloy |
| US6210635B1 (en) * | 1998-11-24 | 2001-04-03 | General Electric Company | Repair material |
| CN101249591A (en) * | 2007-10-31 | 2008-08-27 | 哈尔滨电机厂有限责任公司 | Nickel-based welding wire and preparation technique thereof |
| CN102925712A (en) * | 2012-11-23 | 2013-02-13 | 重庆材料研究院 | Electroslag remelting method for difficult-processing high alloy stainless steel and electroslag remelting slag system adopting electroslag remelting method |
| CN102912151B (en) * | 2012-11-23 | 2014-05-07 | 重庆材料研究院 | Ultra pure electroslag remelting method for high-performance corrosion resistant alloy |
| CN103949806B (en) * | 2014-05-17 | 2015-11-18 | 江苏图南合金股份有限公司 | A kind of preparation method of welding wire |
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2014
- 2014-05-17 CN CN201410207776.0A patent/CN103949801B/en active Active
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