CN106270541A - High intensity increases the processing method that material manufactures material - Google Patents
High intensity increases the processing method that material manufactures material Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 63
- 238000003672 processing method Methods 0.000 title claims abstract description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 32
- 239000000956 alloy Substances 0.000 claims abstract description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 239000010949 copper Substances 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000010146 3D printing Methods 0.000 claims abstract description 17
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 17
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 16
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000428 dust Substances 0.000 claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 19
- 238000005245 sintering Methods 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 15
- 238000000889 atomisation Methods 0.000 claims description 9
- 230000032683 aging Effects 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000003979 granulating agent Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000006104 solid solution Substances 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims 1
- 238000005469 granulation Methods 0.000 claims 1
- 230000003179 granulation Effects 0.000 claims 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 12
- 238000005275 alloying Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 238000005204 segregation Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000009826 distribution Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 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
- 238000005266 casting Methods 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to high intensity and increase the processing method that material manufactures material, it includes being placed in heating furnace shot copper, and shot copper adds nickel shot after dissolving and stannum grain carries out melting, until molten clear after drag for clean scum silica frost, obtain aluminium alloy；Aluminium alloy is poured in mould, is subsequently placed in cold water and is cooled to room temperature, obtain alloy pig；Pulverize after alloy pig is lathed fines, obtain alloyed powder；Above-mentioned alloyed powder is placed in extrusion die, more extruded by extruder, obtain alloy material, then be sintered and heat treatment；Then the material after heat treatment is become with liquid mixing metal powder slurry；Again slurry is made spherical 3D printing metal dust by sponging granulator.The invention can ensure that metal is shorter in the hot stage time of staying; alloying element has little time to spread, thus thinning microstructure, reduce segregation; then improved the intensity of material by extruding and Technology for Heating Processing, then can be prepared by sponging granulator that particle diameter is little, the 3D printing metal dust of uniform particle sizes.
Description
Technical field
The present invention relates to 3D printing metal dust, specifically high intensity increases the processing method that material manufactures material.
Background technology
" 3D printing " technology, also referred to as increases material manufacturing technology, belongs to the one of rapid shaping technique.It is a kind of with number
Based on word model file, the discrete and numerical control molding system by software hierarchy, utilize the mode such as laser beam, hot melt nozzle by powder
Powder metal or plastics etc. can successively be piled up and cohere superposition molding by jointing material, finally produce the technology of entity products.
The central principle that 3D prints is " Layered manufacturing, successively superposition ", and compared with the manufacturing technology of tradition " subtracting material manufacture ", 3D prints
Technology by machinery, material, computer, communicate, the technological incorporation such as control technology and biomedicine through, have realize integrally manufactured
Complex-shaped workpieces, it is greatly shortened life cycle of the product, saves lot of materials, improve the clear superiority such as production efficiency.Concrete next
Saying: first, the application of 3D printing technique will constantly expand；Secondly, 3D printing technique is in the application of each application
Aspect deepens continuously；Furthermore, the materialization form of 3D printing technique self will be abundanter.Thus, this technology is inevitable soon
Rapid osmotic is to national defence, Aero-Space, electric power, automobile, biomedical mould, casting, electric power, agricultural, household electrical appliances, technique in the future
The numerous areas such as the fine arts, animation, profound influence the design concept in above-mentioned field, and coordinates that other technologies are perfect, even updates
Some quotidian fabrication scheme, makes manufacture the most intelligent, simple and direct, green, and properties of product more press close to perfect condition.Now
3D printing technique has become one of emerging technology of paying close attention to most in the whole world.This novel mode of production and other digital production moulds
Formula will promote the realization of the third time industrial revolution together.The wherein big bottleneck that restriction 3D printing technique develops rapidly is to print material
Material, particularly metallic print material.Research and development and the metal material that production performance is more preferable and versatility is higher are to carry 3D printing technique
Key.Directly use 3D printing technique manufacture view at high-performance metal component, need that particle diameter is thin, uniform particle sizes, high spherical
Degree, all kinds of metal dusts of low oxygen content.
Summary of the invention
For above-mentioned technical problem, the present invention provide one to prepare particle diameter is less, the more uniform high intensity of particle diameter increases
Material manufactures the processing method of material.
The technical solution used in the present invention is: a kind of high intensity increases the processing method that material manufactures material, and it includes following step
Rapid:
(1) being placed in heating furnace by shot copper, shot copper adds nickel shot and stannum grain after dissolving and carries out melting, until molten clear after drag for clean scum silica frost,
Obtain aluminium alloy；
(2) aluminium alloy is poured in mould, is subsequently placed in cold water and is cooled to room temperature, obtain alloy pig；
(3) pulverize after alloy pig being lathed fines, obtain alloyed powder；
(4) above-mentioned alloyed powder is placed in extrusion die, more extruded by extruder, obtain alloy material；
(5) more above-mentioned alloy material is sintered and heat treatment；
(6) then by the material after heat treatment and liquid mixing, and add organic bond and stir, be configured to metal powder pulp
Material；
(7) again slurry is made spherical 3D printing metal dust by sponging granulator.
As preferably, in described stannum grain, shot copper and nickel shot, the content of nickel is 10wt%, and the content of stannum is 12 wt %, remaining
Amount is copper.
As preferably, described liquid uses distilled water or deionized water, and the mass ratio of alloyed powder and liquid is (2.5
3): 1.
As preferably, described organic bond uses metal granulating agent, and its addition is the 2 4% of alloyed powder quality.
As preferably, described sponging granulator uses centrifugal spraying granulator or press atomization comminutor.
As preferably, the rotating speed of described centrifugal spraying granulator is 5,000 8000 revs/min, the pressure of press atomization comminutor
Power is 15 25kg/ cm 2。
As preferably, the inlet temperature of described sponging granulator dry air is 250 350 DEG C, outlet temperature is 100
150℃；The flow of dry air is 100 200 Nm3 /h；Charging rate is 10 20 kg/h.
As preferably, extruded carrying out in protective atmosphere, pressure is 1000 1200MPa.
As preferably, during sintering, first sinter 20 30s with the temperature of 280 320 DEG C, then with 500 600 DEG C of temperature
Sinter 40 60s, then sinter 20 30s with 650 700 DEG C of temperature.
As preferably, heat treatment uses solid solution, cold pressing deformation and Ageing Treatment successively, and wherein the temperature of solution treatment is
650 700 DEG C, the time is 10 12min；The deflection of colding pressing of deformation process of colding pressing is 30 35%；The temperature of Ageing Treatment is
300 350 DEG C, the time is 2 3h
As can be known from the above technical solutions, the present invention is poured in mould by aluminium alloy, is subsequently placed in cold water and is cooled to room temperature,
Making aluminium alloy quickly cool down, it is ensured that metal is shorter in the hot stage time of staying, alloying element has little time to spread, thus refinement group
Knit, reduce segregation, then improved the intensity of material by extruding and Technology for Heating Processing, then particle diameter can be prepared by sponging granulator
Little, the 3D printing metal dust of uniform particle sizes.
Detailed description of the invention
The present invention is described more detail below, and illustrative examples and explanation in this present invention are used for explaining the present invention,
But it is not as a limitation of the invention.
High intensity increases the processing method that material manufactures material, and it comprises the following steps:
With nickel, copper, stannum grain as raw material, and by the content of nickel be 10wt%, the content of stannum be 12 wt %, surplus be that copper is joined
Material；Then being placed in heating furnace by shot copper, shot copper adds nickel shot and stannum grain after dissolving and carries out melting, until molten clear after drag for clean scum silica frost,
Obtain aluminium alloy；Aluminium alloy is poured in mould, is immediately placed in cold water together with mould and is cooled to room temperature, obtain alloy pig；
Then pulverize after alloy pig being lathed fines, obtain alloyed powder.
Above-mentioned alloyed powder is placed in extrusion die, more extruded by extruder, obtain alloy material；Extruding
Cheng Zhong, the metal powder end in mould is in addition to the normal pressure being squeezed machine drift, also by lateral pressure and the friction of mold wall
The effect of power；Along with the movement of drift, the powder in mould is progressively compacted, thus is extruded by mould.In order to prevent metal
Oxidation, extruded is carried out under protective atmosphere, and pressure uses 1000 1200MPa, so can obtain consistency higher
Material, and performance profile is uniform, productivity ratio is high；Then the copper nickel alumin(i)um alloy material of above-mentioned extruded acquisition is sintered,
Sintering is carried out in three stages, first sinters 20 30s with the temperature of 280 320 DEG C, then with 500 600 DEG C of temperature sintering 40
60s, then sinter 20 30s with 650 700 DEG C of temperature；First stage belongs to the sintering preparatory stage, for sintering purification further
Environment；Second stage, along with the rising of temperature, initially forms sintering neck, and be combined with each other between alloying substance granule, granule table
Face oxide generation reduction reaction, thus continue to participate in sintering, intergranular combination encloses space each other；3rd
The sintering temperature in stage is higher, and intergranular sintering neck is grown up further, and more granule is merged, and sintered body obtains into one
Step is shunk, nodularization, thus intensity and the hardness of material is prepared in raising.
Above-mentioned powdered metallurgical material is carried out heat treatment；Heat treatment uses solid solution, cold pressing deformation and Ageing Treatment successively；Gu
The temperature of molten process is 650 700 DEG C, and the time is 10 12min, so can control nickel, the aluminum solid solubility in Copper substrate and
Grain size；Solid solubility temperature is too high, can cause coarse grains, reduces alloy strength；Solid solubility temperature is too low, though crystal grain is less, but
Follow-up Ageing Treatment can be caused to be difficult to play the effect of reinforced alloys；The deflection of colding pressing of deformation process of colding pressing is 30 35%；Time
Effect carries out cold deformation to alloy before processing, and alloy can be made to present the double effects of working hardening and ageing strengthening；At timeliness
The temperature of reason is 300 350 DEG C, and the time is 2 3h；Ageing Treatment can separate out the second phase, produces dispersion-strengtherning.
Then by alloyed powder and liquid mixing, and add metal granulating agent and stir, be configured to metal powder slurry；Again will
Slurry prepares spherical, that particle diameter is less, the 3D of even particle size distribution by centrifugal spraying granulator or press atomization comminutor
Printing metal dust.
Embodiment 1
By the content of nickel be 10wt%, the content of stannum be 1 wt %, surplus be that copper carries out dispensing, shot copper is placed in heating furnace, copper
Grain adds nickel shot and stannum grain after dissolving and carries out melting, until molten clear after drag for clean scum silica frost, obtain aluminium alloy；Aluminium alloy is poured into mould
In, it is immediately placed in cold water together with mould and is cooled to room temperature, obtain alloy pig；Then powder is carried out after alloy pig being lathed fines
Broken, obtain alloyed powder；Alloyed powder is placed in extrusion die, then is used the pressure extrusion molding of 1000MPa by extruder,
To alloy material, then sinter 30s with the temperature of 280 DEG C, then with 500 DEG C of temperature sintering 60s, then with 650 DEG C of temperature sintering
30s；Subsequently with 650 DEG C of solution treatment 12min；Then colding pressing deformation process, deflection of colding pressing is 30%；Last with 300 DEG C of timeliness
Process 3h；Then the material after heat treatment is mixed with distilled water, and the mass ratio of material and distilled water is 2.5:1, and add
2% metal granulating agent of quality of materials stirs, and is configured to metal powder slurry；Again slurry is entered by centrifugal spraying granulator
Row pelletize, wherein the inlet temperature of sponging granulator dry air be 250 DEG C, outlet temperature be 100 DEG C, the flow of dry air
It is 100 Nm3 / h, charging rate are 10kg/h, and the rotating speed of centrifugal spraying granulator is 5,000 8000 revs/min, thus obtains
Spherical 3D printing metal dust；The particle size distribution range of this metal dust is 53 74nm, and hardness, up to 37.6HRC, is cut
Shearing stress is 567.2MPa, and bulk density is 7.18g/cm3。
Embodiment 2
By the content of nickel be 10wt%, the content of stannum be 1.5 wt %, surplus be that copper carries out dispensing, shot copper is placed in heating furnace,
Shot copper adds nickel shot and stannum grain after dissolving and carries out melting, until molten clear after drag for clean scum silica frost, obtain aluminium alloy；Aluminium alloy is poured into mould
In tool, it is immediately placed in cold water together with mould and is cooled to room temperature, obtain alloy pig；Then carry out after alloy pig being lathed fines
Pulverize, obtain alloyed powder；Alloyed powder is placed in extrusion die, then is used the pressure extrusion molding of 1100MPa by extruder,
Obtain alloy material, then sinter 25s with the temperature of 300 DEG C, then with 560 DEG C of temperature sintering 50s, then burn with 680 DEG C of temperature
Knot 25s；Subsequently with 680 DEG C of solution treatment 11min；Then colding pressing deformation process, deflection of colding pressing is 32%；Time finally with 330 DEG C
Effect processes 2.5h；Then the material after heat treatment is mixed with deionized water, and the mass ratio of material and deionized water is 2.8:
1, and the 3% metal granulating agent adding quality of materials stirs, and is configured to metal powder slurry；Again slurry is passed through press atomization
Comminutor carries out pelletize, and wherein the inlet temperature of sponging granulator dry air is 300 DEG C, outlet temperature is 130 DEG C, is dried sky
The flow of gas is 150 Nm3 / h, charging rate are 15 kg/h, and the pressure of press atomization comminutor is 25kg/ cm 2, thus
Obtain spherical 3D printing metal dust；The particle size distribution range of this metal dust is 51 69nm, hardness up to
45.6HRC, shear strength is 596.4MPa, and bulk density is 7.52g/cm3。
Embodiment 3
By the content of nickel be 10wt%, the content of stannum be 2 wt %, surplus be that copper carries out dispensing, shot copper is placed in heating furnace, copper
Grain adds nickel shot and stannum grain after dissolving and carries out melting, until molten clear after drag for clean scum silica frost, obtain aluminium alloy；Aluminium alloy is poured into mould
In, it is immediately placed in cold water together with mould and is cooled to room temperature, obtain alloy pig；Then powder is carried out after alloy pig being lathed fines
Broken, obtain alloyed powder；Alloyed powder is placed in extrusion die, then is used the pressure extrusion molding of 1200MPa by extruder,
To alloy material, then sinter 20s with the temperature of 320 DEG C, then with 600 DEG C of temperature sintering 40s, then with 700 DEG C of temperature sintering
20s；Subsequently with 700 DEG C of solution treatment 10min；Then colding pressing deformation process, deflection of colding pressing is 35%；Last with 350 DEG C of timeliness
Process 2h；Then the material of heat treatment mixes with deionized water, and the mass ratio of material and deionized water is 3:1, and adds material
4% metal granulating agent of material quality stirs, and is configured to metal powder slurry；Again slurry is carried out by press atomization comminutor
Pelletize, wherein the inlet temperature of sponging granulator dry air be 350 DEG C, outlet temperature be 150 DEG C, the flow of dry air be
200 Nm 3 / h, charging rate are 20 kg/h, and the pressure of press atomization comminutor is 15kg/ cm 2, thus obtain spherical
3D printing metal dust；The particle size distribution range of this metal dust is 52 73nm, and hardness is up to 38.9HRC, shear strength
For 563.8MPa, bulk density is 7.58g/cm3。
The technical scheme provided the embodiment of the present invention above is described in detail, specific case used herein
Principle and embodiment to the embodiment of the present invention are set forth, and the explanation of above example is only applicable to help to understand this
The principle of inventive embodiments；Simultaneously for one of ordinary skill in the art, according to the embodiment of the present invention, in specific embodiment party
All will change in formula and range of application, in sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. high intensity increases the processing method that material manufactures material, and it comprises the following steps:
(1) being placed in heating furnace by shot copper, shot copper adds nickel shot and stannum grain after dissolving and carries out melting, until molten clear after drag for clean scum silica frost,
Obtain aluminium alloy；
(2) aluminium alloy is poured in mould, is subsequently placed in cold water and is cooled to room temperature, obtain alloy pig；
(3) pulverize after alloy pig being lathed fines, obtain alloyed powder；
(4) above-mentioned alloyed powder is placed in extrusion die, more extruded by extruder, obtain alloy material；
(5) more above-mentioned alloy material is sintered and heat treatment；
(6) then by the material after heat treatment and liquid mixing, and add organic bond and stir, be configured to metal powder pulp
Material；
(7) again slurry is made spherical 3D printing metal dust by sponging granulator.
The most according to claim 1, high intensity increases the processing method that material manufactures material, it is characterised in that: described stannum grain, shot copper
Being 10wt% with the content of nickel in nickel shot, the content of stannum is 12 wt %, and surplus is copper.
3. high intensity increases the processing method that material manufactures material as claimed in claim 1, it is characterised in that: described liquid uses distillation
Water or deionized water, and the mass ratio of alloyed powder and liquid is (2.5 3): 1.
4. high intensity increases the processing method that material manufactures material as claimed in claim 1, it is characterised in that: described organic bond is adopted
Using metal granulating agent, its addition is the 2 4% of alloyed powder quality.
5. high intensity increases the processing method that material manufactures material as claimed in claim 1, it is characterised in that: described sponging granulator is adopted
With centrifugal spraying granulator or press atomization comminutor.
6. high intensity increases the processing method that material manufactures material as claimed in claim 5, it is characterised in that: described centrifugal spray granulation
The rotating speed of machine is 5,000 8000 revs/min, and the pressure of press atomization comminutor is 15 25kg/ cm 2。
7. high intensity increases the processing method that material manufactures material as claimed in claim 5, it is characterised in that: described sponging granulator is done
The inlet temperature of dry air is 250 350 DEG C, outlet temperature is 100 150 DEG C；The flow of dry air is 100 200 Nm3 /h；Charging rate is 10 20 kg/h.
8. high intensity increases the processing method that material manufactures material as claimed in claim 1, it is characterised in that: extruded at protection gas
Carrying out in atmosphere, pressure is 1000 1200MPa.
9. high intensity increases the processing method that material manufactures material as claimed in claim 1, it is characterised in that: during sintering, first with 280
The temperature of 320 DEG C sinters 20 30s, then sinters 40 60s with 500 600 DEG C of temperature, then with 650 700 DEG C of temperature sintering
20—30s。
10. high intensity increases the processing method that material manufactures material as claimed in claim 1, it is characterised in that: heat treatment uses successively
Solid solution, cold pressing deformation and Ageing Treatment, wherein the temperature of solution treatment is 650 700 DEG C, and the time is 10 12min；Cold pressing change
The deflection of colding pressing that shape processes is 30 35%；The temperature of Ageing Treatment is 300 350 DEG C, and the time is 2 3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610863068.1A CN106270541A (en) | 2016-09-29 | 2016-09-29 | High intensity increases the processing method that material manufactures material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610863068.1A CN106270541A (en) | 2016-09-29 | 2016-09-29 | High intensity increases the processing method that material manufactures material |
Publications (1)
| Publication Number | Publication Date |
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| CN106270541A true CN106270541A (en) | 2017-01-04 |
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