CN106346011A - Preparation method of composite metal for 3D printing - Google Patents
Preparation method of composite metal for 3D printing Download PDFInfo
- Publication number
- CN106346011A CN106346011A CN201610863071.3A CN201610863071A CN106346011A CN 106346011 A CN106346011 A CN 106346011A CN 201610863071 A CN201610863071 A CN 201610863071A CN 106346011 A CN106346011 A CN 106346011A
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- Prior art keywords
- preparation
- alloy
- printing
- powder
- metal powder
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Classifications
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- 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
- B22F9/082—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 atomising using a fluid
-
- 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
- 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
- B22F9/082—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 atomising using a fluid
- B22F2009/0848—Melting process before atomisation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention relates to a preparation method of composite metal for 3D printing. The preparation method comprises the steps that metal elementary substances are smelted, floating residues are completely taken out after dissolved clarification, and alloy liquid is obtained; the alloy liquid is cast into a mold, the alloy liquid and the mold are rapidly put in cold water, cooling is performed to reach room temperature, and alloy ingots are obtained; then, the alloy ingots are turned into fines, and smashing is performed to obtain alloy powder; the alloy powder and the liquid are mixed, and an organic binder is added, and even stirring is performed to prepare metal powder slurry; then the slurry is made into spherical metal powder for 3D printing through a mist spraying pelletizer. The alloy liquid is rapidly cooled by casting the alloy liquid into the mold, then putting mold into cold water and performing cooling to reach room temperature, it is ensured that the metal staying time at a high-temperature stage is shorter, alloy elements are too late to diffuse, accordingly tissues are refined, segregation is reduced, and then the metal powder small and uniform in particle size and used for 3D printing can be prepared through the mist spraying pelletizer.
Description
Technical field
The present invention relates to 3d printing metal dust, the specifically preparation method of 3d printing composite metal powder.
Background technology
" 3d printing " technology, also referred to as increases material manufacturing technology, belongs to one kind of rapid shaping technique.It is a kind of with number
Based on word model file, by software hierarchy is discrete and numerical control molding system, using modes such as laser beam, hot melt nozzles by powder
Last shape metal or plastics etc. jointing material can successively be piled up and cohered superposition molding, finally produce the technology of entity products.
The central principle that 3d prints is " Layered manufacturing is successively superimposed ", and compared with the manufacturing technology of traditional " subtracting material manufacture ", 3d prints
Technology by the technological incorporation insertion such as machinery, material, computer, communication, control technology and biomedicine, have realize integrally manufactured
Complex-shaped workpieces, greatly shorten life cycle of the product, save lot of materials, the clear superiority such as improve production efficiency.Specifically come
Say: 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 itself will be abundanter.Thus, this technology inevitable soon
Future, rapid osmotic was to national defence, Aero-Space, electric power, automobile, biomedical mould, casting, electric power, agricultural, household electrical appliances, technique
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 schemes, make manufacture more intelligent, simple and direct, green, properties of product more press close to perfect condition.Now
3d printing technique has become one of emerging technology of global concern.This new mode of production and other digital production moulds
Formula will promote the realization of the third time industrial revolution together.The wherein one 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 adopt 3d printing technique manufacture view in 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.
Content of the invention
For above-mentioned technical problem, the present invention provide one kind can prepare particle diameter is less, the more uniform 3d of particle diameter prints and uses
The preparation method of composite metal powder.
The technical solution used in the present invention is: the preparation method of 3d printing composite metal powder, and it comprises the following steps:
(1) each metal simple-substance is carried out melting, after molten clear after drag for net 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) alloy pig is lathed after fines and is pulverized, obtain alloyed powder；
(4) by alloyed powder and liquid mixing, and add organic bond to stir, be configured to metal powder slurry；
(5) again slurry is made spherical 3d printing metal dust by sponging granulator.
Preferably, described metal simple-substance adopts aluminum shot, copper particle and nickel shot, the wherein content of nickel is 10wt%, the content of aluminum
For 12 wt %, balance of copper.
Preferably, described liquid adopts distilled water or deionized water, and alloyed powder is (2.5 with the mass ratio of liquid
3): 1.
Preferably, described organic bond adopts metal granulating agent, its addition is the 2 4% of alloyed powder quality.
Preferably, described sponging granulator adopts centrifugal spraying granulator or press atomization comminutor.
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/ cm2.
Preferably, the inlet temperature of described sponging granulator dry air be 250 350 DEG C, outlet temperature be 100
150℃；The flow of dry air is 100 200 nm3/h；Charging rate is 10 20 kg/h.
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, makes aluminium alloy quickly cool down it is ensured that metal is shorter in the hot stage time of staying, and alloying element has little time to spread, thus
Thinning microstructure, reduces segregation, then can prepare by sponging granulator that particle diameter is little, uniform particle sizes 3d printing metal dusts.
Specific embodiment
The present invention is described more detail below, the illustrative examples of the here present invention and explanation are used for explaining the present invention,
But it is not as a limitation of the invention.
The preparation method of 3d printing composite metal powder, it comprises the following steps:
With aluminum, copper, nickel shot as raw material, and by the content of nickel be 10wt%, the content of aluminum be that 12 wt %, balance of copper are joined
Material；Then aluminum shot is placed in induction heater, after aluminum shot dissolving, adds copper particle and nickel shot to carry out melting, after molten clear after drag for and only float
Slag, obtains 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
Ingot；Then alloy pig is lathed after fines and is pulverized, obtain alloyed powder；Then by alloyed powder and liquid mixing, and add
Metal granulating agent stirs, and is configured to metal powder slurry；Again slurry is passed through centrifugal spraying granulator or press atomization pelletize
Spherical, particle diameter less, even particle size distribution 3d printing metal dust prepared by machine.
Embodiment 1
1wt % aluminum shot is placed in induction heater, after aluminum shot dissolving, adds 89wt % copper particle and 10wt% nickel shot to carry out melting,
After molten clear after drag for net 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, obtains alloy pig；Then alloy pig is lathed after fines and is pulverized, obtain alloyed powder；Then by alloyed powder and steaming
Distilled water mixes, and alloyed powder is 2.5:1 with the mass ratio of distilled water, and adds 2% metal granulating agent stirring of alloyed powder quality all
Even, it is configured to metal powder slurry；Again slurry is carried out pelletize, wherein sponging granulator dry air by centrifugal spraying granulator
Inlet temperature be 250 DEG C, outlet temperature be 100 DEG C, the flow of dry air be 100 nm3/ h, charging rate are 10kg/
H, the rotating speed of centrifugal spraying granulator is 5,000 8000 revs/min, thus obtaining spherical 3d printing metal dust；This metal
The particle size distribution range of powder is 56 78nm, and hardness is up to 36.1hrc.
Embodiment 2
1.5 wt % aluminum shots are placed in induction heater, after aluminum shot dissolving, add 88.5 wt % copper particles and 10wt% nickel shot to carry out
Melting, after molten clear after drag for net scum silica frost, obtain aluminium alloy；Aluminium alloy is poured in mould, is immediately placed in cold water together with mould
It is cooled to room temperature, obtain alloy pig；Then alloy pig is lathed after fines and is pulverized, obtain alloyed powder；Then by alloy
Powder is mixed with deionized water, and alloyed powder is 2.8:1 with the mass ratio of deionized water, and adds 3% metal of alloyed powder quality to make
Granule stirs, and is configured to metal powder slurry；Again slurry is carried out pelletize, wherein mist projection granulating by press atomization comminutor
The inlet temperature of machine dry air is 300 DEG C, outlet temperature is 130 DEG C, the flow of dry air is 150 nm3/ h, charging speed
Spend for 15 kg/h, the pressure of press atomization comminutor is 25kg/ cm2, thus obtaining spherical 3d printing metal dust；Should
The particle size distribution range of metal dust is 52 70nm, and hardness is up to 44.1hrc.
Embodiment 3
2 wt % aluminum shots are placed in induction heater, after aluminum shot dissolving, add 88wt % copper particle and 10wt% nickel shot to carry out melting,
After molten clear after drag for net 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, obtains alloy pig；Then alloy pig is lathed after fines and is pulverized, obtain alloyed powder；Then by alloyed powder with go
Ionized water mixes, and alloyed powder is 3:1 with the mass ratio of deionized water, and adds 4% metal granulating agent stirring of alloyed powder quality
Uniformly, it is configured to metal powder slurry；Again slurry is carried out pelletize by press atomization comminutor, wherein sponging granulator is dried sky
The inlet temperature of gas is 350 DEG C, outlet temperature is 150 DEG C, the flow of dry air is 200 nm3/ h, charging rate are 20
Kg/h, the pressure of press atomization comminutor is 15kg/ cm2, thus obtaining spherical 3d printing metal dust；This metal powder
The particle size distribution range at end is 54 73nm, and hardness is up to 38.9hrc.
The technical scheme above embodiment of the present invention being provided is described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention is set forth, the explanation of above example is only applicable to help 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 (7)
- The preparation method of 1.3d printing composite metal powder, it comprises the following steps:(1) each metal simple-substance is carried out melting, after molten clear after drag for net 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) alloy pig is lathed after fines and is pulverized, obtain alloyed powder；(4) by alloyed powder and liquid mixing, and add organic bond to stir, be configured to metal powder slurry；(5) again slurry is made spherical 3d printing metal dust by sponging granulator.
- 2. according to claim 1 3d printing composite metal powder preparation method it is characterised in that: described metal simple-substance Using aluminum shot, copper particle and nickel shot, the wherein content of nickel is 10wt%, and the content of aluminum is 12 wt %, balance of copper.
- 3. 3d printing composite metal powder as claimed in claim 1 preparation method it is characterised in that: described liquid is using steaming Distilled water or deionized water, and alloyed powder is (2.5 3) with the mass ratio of liquid: 1.
- 4. 3d printing composite metal powder as claimed in claim 1 preparation method it is characterised in that: described organic bond Using metal granulating agent, its addition is the 2 4% of alloyed powder quality.
- 5. 3d printing composite metal powder as claimed in claim 1 preparation method it is characterised in that: described sponging granulator Using centrifugal spraying granulator or press atomization comminutor.
- 6. 3d printing composite metal powder as claimed in claim 5 preparation method it is characterised in that: described centrifugal spray is made The rotating speed of grain machine is 5,000 8000 revs/min, and the pressure of press atomization comminutor is 15 25kg/ cm2.
- 7. 3d printing composite metal powder as claimed in claim 5 preparation method it is characterised in that: described sponging granulator 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610863071.3A CN106346011A (en) | 2016-09-29 | 2016-09-29 | Preparation method of composite metal for 3D printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610863071.3A CN106346011A (en) | 2016-09-29 | 2016-09-29 | Preparation method of composite metal for 3D printing |
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| CN106346011A true CN106346011A (en) | 2017-01-25 |
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| CN201610863071.3A Pending CN106346011A (en) | 2016-09-29 | 2016-09-29 | Preparation method of composite metal for 3D printing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999776A (en) * | 2017-12-19 | 2018-05-08 | 马斌祥 | A kind of preparation process of 3D printing metal dust |
| CN109609831A (en) * | 2019-01-21 | 2019-04-12 | 广西慧思通科技有限公司 | A kind of 3D printing metal material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410202A (en) * | 2001-09-21 | 2003-04-16 | 吴庆林 | Preparation method of spherical aluminium zinc alloy powder and its product |
| KR20090121967A (en) * | 2008-05-23 | 2009-11-26 | 부산대학교 산학협력단 | Metal nano composite material manufacture method using for turbulent in-situ melting mixing process |
| WO2011020462A1 (en) * | 2009-08-18 | 2011-02-24 | Mtu Aero Engines Gmbh | Thin-walled structural component, and method for the production thereof |
| CN103785860A (en) * | 2014-01-22 | 2014-05-14 | 宁波广博纳米新材料股份有限公司 | Metal powder for 3D printer and preparing method thereof |
-
2016
- 2016-09-29 CN CN201610863071.3A patent/CN106346011A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410202A (en) * | 2001-09-21 | 2003-04-16 | 吴庆林 | Preparation method of spherical aluminium zinc alloy powder and its product |
| KR20090121967A (en) * | 2008-05-23 | 2009-11-26 | 부산대학교 산학협력단 | Metal nano composite material manufacture method using for turbulent in-situ melting mixing process |
| WO2011020462A1 (en) * | 2009-08-18 | 2011-02-24 | Mtu Aero Engines Gmbh | Thin-walled structural component, and method for the production thereof |
| CN103785860A (en) * | 2014-01-22 | 2014-05-14 | 宁波广博纳米新材料股份有限公司 | Metal powder for 3D printer and preparing method thereof |
Non-Patent Citations (1)
| Title |
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| 韩芳: "粉末冶金法制备高强度Cu-Ni-Sn合金的工艺及性能研究", 《中国优秀硕士学位论文全文数据库（工程科技Ⅰ辑）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999776A (en) * | 2017-12-19 | 2018-05-08 | 马斌祥 | A kind of preparation process of 3D printing metal dust |
| CN109609831A (en) * | 2019-01-21 | 2019-04-12 | 广西慧思通科技有限公司 | A kind of 3D printing metal material and preparation method thereof |
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Application publication date: 20170125 |