CN105880612B - A kind of increasing material manufacturing active metal powder preparation method - Google Patents
A kind of increasing material manufacturing active metal powder preparation method Download PDFInfo
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- CN105880612B CN105880612B CN201610513064.0A CN201610513064A CN105880612B CN 105880612 B CN105880612 B CN 105880612B CN 201610513064 A CN201610513064 A CN 201610513064A CN 105880612 B CN105880612 B CN 105880612B
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- powder
- material manufacturing
- increasing material
- active metal
- metal powder
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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
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/34—Process control of powder characteristics, e.g. density, oxidation or flowability
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Nanotechnology (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention discloses a kind of method for preparing increasing material manufacturing active metal powder; it relates to the use of a kind of no crucible inert gas atomizer powder-making technique; working chamber and spray chamber forvacuum are handled first; then argon gas or helium protection are poured; radio-frequency induction coil fusing bar is utilized to form continuous alloy liquid stream reactive alloys stick in working chamber; inert gas atomizer is finally carried out to the aluminium alloy stream using high pressure atomizing nozzle, powder is made, powder is collected through cyclonic separation.The method of this preparation increasing material manufacturing active metal powder, technique is advanced, production is flexible, and powder is not contacted with any material, avoids secondary pollution；Have many advantages, such as that good sphericity, oxygen content be low, good fluidity, meet very much increasing material manufacturing technique requirement.
Description
Technical field
The present invention relates to metal material fields, particularly suitable for increasing material manufacturing special active metal dust preparation technology and answer
With.
Background technology
3D printing (academic title is increasing material manufacturing) is to manufacture entity using the method that material successively adds up by CAD data
The technology of part is manufactured by a kind of material addition from bottom to top, can complete the manufacture of almost random geometry object.Increase
Material manufacture can shape free form surface, hollow structure and porous structure that traditional manufacturing technology can not shape etc. complex-shaped zero
Part has many advantages, such as that forming period is short, manufacture efficiency is high, saves material, is to subtract material manufacture and materials is waited to manufacture two quasi-tradition technologies
Important supplement, now just by more and more extensive attention.
Metal increasing material manufacturing is known as the jewel on 3D printing industry imperial crown, can carry out direct part manufacture, be to tradition
Manufacturing mode is overturned, metal increasing material manufacturing mainly include selective laser sintering, selective laser fusing, electron beam selective melting,
Several forming techniques such as laser solid forming, are related to the subjects such as machinery, electronics, material, software, control.Metal increasing material manufacturing
Moulding material is mainly pre-alloyed powder, and higher to the quality requirement of metal powder.Have at present using more material stainless
Powdered steel, vitallium powder, Co-based alloy powder, Al alloy powder, titanium alloy powder.Vacuum melting inert gas atomizer
Technology is to prepare the better method of high-test metal and alloy powder, but traditional gas atomization equipment is all to be contained to melt with crucible
Material, when preparing active metal, such as titanium alloy, alloy is easily reacted with crucible material, there are material contamination, be mingled with it is difficult to control etc.
Shortcoming.
Invention content
It is insufficient existing for the prior art particularly vacuum aerosolization technology the purpose of the present invention is overcoming, a kind of technique is provided
Advanced, purity is high, powder diameter is controllable, oxygen content is low, the flexible increasing material manufacturing special active metal powder preparation method of production.
Technical solution of the present invention integrates the characteristics of inert gas atomizer powder-making technique and high-frequency induction melting and advantage, passes through
Without crucible high-frequency induction melting active metal, while metal bar real time rotation, in fusion process is ensured active metal not by
The temperature of oxidation and metal belt is uniform, while obtaining the consistent degree of superheat, moreover it is possible to be generated using NEW ATOMIZING NOZZLE WITH RING HOLES
High pressure draught, make the powder of preparation more it is thin evenly.Disclosure satisfy that increasing material manufacturing technique to powder size distribution, apparent density,
The high request of the performances such as oxygen content, mobility.
For this purpose, the present invention adopts the following technical scheme that：A kind of increasing material manufacturing active metal powder preparation method, including with
Lower step：
(1) reactive alloys pole, a diameter of 40-80mm are chosen, caput is processed coning, then cone angle 30-70 degree hangs down
It is straight to be fixed on spray chamber, close hatch door；
(2) to working chamber and spray chamber forvacuum, vacuum degree reaches 1 × 10-4~1 × 10-2Then Pa fills high-purity argon
Gas or helium inert gas shielding, chamber pressure are maintained at 1-1.02atm, avoid material oxidation；
(3) bar is placed in radio-frequency induction coil, adjusts rotating rate of electrode 30-90rpm, the induced power 25- of coil
80kW makes bar alloy melting and flows down naturally；
(4) setting bar feeds down speed as 0.05-5mm/s, opens atomizer valve, and inert gas pressure is
0.2-5Mpa by the aluminium alloy high-pressure atomization flowed down by gravity into fine particle, and is cooled into powder；
(5) it after the powder cooling, is collected through cyclonic separation.
(6) the reactive alloys powder and vacuum or gas of particle size range needed for being sieved under inert gas shielding using vibrating screen
Protective packaging.
Preferably, the granularity of the powder is 0-25um, the spherical powder of 15-45um, 15-53um can be applied to increase
Material manufactures selective laser melting technical field；
Preferably, the granularity of the powder is 45-105um, the spherical powder of 53-200um can be respectively applied to increase material
Manufacture electron beam melting and laser solid forming technical field.
The advantage of the invention is that：
(1) aerosolization technology with high-frequency induction technology is combined, avoids active metal and crucible reaction, prevented external miscellaneous
The pollution of prime element, it is ensured that powder quality.Simple for process, continuous feeding, production is flexible, is particularly suitable for small lot active metal powder
It is prepared by end.
(2) unique annular distance atomizing nozzle design, can make that powder particle is more tiny, uniform, satellite ball is few, good fluidity.
Meet the high request of increasing material manufacturing special powder.
Specific embodiment
It further illustrates the present invention with reference to embodiments, these embodiments are merely illustrative rather than limiting the invention
Protection domain.
Embodiment 1
By the pole that diameter 40mm is made in active metal TC4, length is 800mm, caput is processed coning, cone angle 70
Degree, is then vertically fixed on the fixture in spray chamber, chamber door is closed, to working chamber and spray chamber forvacuum, vacuum
Degree reaches 1 × 10-4~1 × 10-2Pa is then charged with high-purity argon gas or helium inert gas, avoids material oxidation, chamber pressure
It is maintained at 1atm；Bar decline is placed in radio-frequency induction coil using motor, adjusts rotating rate of electrode 80rpm, the sensing of coil
Power 75kW makes TC4 bars alloy melting and flows down naturally, while bar feed speed is set to open atomizer for 3mm/s
Valve, inert gas pressure 3.5Mpa will be atomized into fine particle, and be cooled into powder by the aluminium alloy that gravity flows down
End；Using vibrating screen, screen size range 15-45um reactive alloys powder and vacuum or gas shielded are packed under inert gas shielding.
It analyzes after tested, minute spherical TC4 powder oxygen content is 850ppm, average particle size 28-35um, yield rate 35-40%.
Embodiment 2
By the pole that diameter 75mm is made in active metal AlSi10Mg, length is 600-800mm, caput is processed into circular cone
Then shape, 35 degree of cone angle are vertically fixed on the fixture in spray chamber, close chamber door, working chamber and spray chamber are taken out in advance
Vacuum, vacuum degree reach 1 × 10-4~1 × 10-2Pa is then charged with high-purity argon gas or helium inert gas, avoids material oxidation,
Chamber pressure is maintained at 1.02atm；Bar decline is placed in radio-frequency induction coil using motor, adjusts rotating rate of electrode 40rpm,
The induced power 27kW of coil makes AlSi10Mg bars alloy melting and flows down naturally, while sets the bar feed speed to be
0.1mm/s, opens atomizer valve, and inert gas pressure 3.5Mpa will be atomized by the aluminium alloy that gravity flows down
Fine particle, and it is cooled into powder；Using vibrating screen, screen size range 45-105um activity is closed under inert gas shielding
Bronze and vacuum or gas shielded packaging.It analyzes after tested, minute spherical TC4 powder oxygen content is 120ppm, average particle size 70-
90um, yield rate 40-50%, mobility are less than 15s/50g.
Although having used embodiment, the present invention is described, these embodiments are only to illustrate to be not intended to limit
The present invention.For those skilled in the art, it should be appreciated that ask to protect in without departing substantially from the claims in the present invention
In the case of the range of shield, various modifications and variations can be carried out to the embodiment above.
Claims (3)
1. a kind of increasing material manufacturing active metal powder preparation method, it is characterised in that there are following technical process：
（1）Reactive alloys pole, a diameter of 40-80mm are chosen, caput is processed coning, and the cone angle of caput is 30-70 degree, so
After be vertically fixed on spray chamber fixture；
（2）To working chamber and spray chamber forvacuum, then argon filling gas shielded, chamber pressure 1-1.02atm；
（3）Bar is placed in radio-frequency induction coil, the rotating speed for adjusting bar is 30-90rpm, the induced power 25- of coil
80kW makes bar alloy melting flow down naturally；
（4）It is 0.1-5mm/s to set bar feed speed, opens atomizer valve, and pressure 0.2-5MPa will be made by gravity
Fine particle is atomized into, and be cooled into powder with the aluminium alloy flowed down；
（5）After the powder cooling, collected through cyclonic separation；
（6）The reactive alloys powder of particle size range needed for being sieved under inert gas shielding using vibrating screen is simultaneously packed.
2. increasing material manufacturing as described in claim 1 active metal powder preparation method, it is characterised in that the powder is grain
The spherical powder for 0-25um, 15-45um or 15-53um is spent, applied to increasing material manufacturing selective laser melting technical field.
3. increasing material manufacturing as described in claim 1 active metal powder preparation method, it is characterised in that the powder is grain
The spherical powder for 45-105um or 53-200um is spent, is led applied to increasing material manufacturing electron beam melting and laser solid forming technology
Domain.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610513064.0A CN105880612B (en) | 2016-06-28 | 2016-06-28 | A kind of increasing material manufacturing active metal powder preparation method |
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| CN201610513064.0A CN105880612B (en) | 2016-06-28 | 2016-06-28 | A kind of increasing material manufacturing active metal powder preparation method |
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| CN105880612A CN105880612A (en) | 2016-08-24 |
| CN105880612B true CN105880612B (en) | 2018-07-06 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216703B (en) * | 2016-09-27 | 2018-12-14 | 中航迈特粉冶科技（北京）有限公司 | A kind of preparation method of the spherical Al alloy powder of 3D printing |
| CN106735269A (en) * | 2016-12-16 | 2017-05-31 | 南通金源智能技术有限公司 | The method for preparing the 3D printing Al alloy powder of excellent sintering character |
| CN106735270A (en) * | 2016-12-20 | 2017-05-31 | 深圳微纳增材技术有限公司 | A kind of metal dust Preparation equipment and method suitable for 3D printing |
| CN106670488A (en) * | 2016-12-27 | 2017-05-17 | 深圳微纳增材技术有限公司 | Preparation device and method for high-activity metal powder |
| CN106881464A (en) * | 2017-03-22 | 2017-06-23 | 自贡长城硬面材料有限公司 | A kind of preparation method of high-purity 3D printing increasing material manufacturing metal alloy powders |
| CN107841654B (en) * | 2017-10-17 | 2019-11-12 | 中国科学院金属研究所 | A kind of increasing material manufacturing boracic titanium alloy powder and preparation method thereof |
| WO2020016301A1 (en) * | 2018-07-19 | 2020-01-23 | Heraeus Additive Manufacturing Gmbh | Use of powders of highly reflective metals for additive manufacture |
| CN108941562B (en) * | 2018-10-16 | 2023-07-28 | 南京尚吉增材制造研究院有限公司 | Method and device for manufacturing metal additive by continuous powder feeding induction heating |
| CN110125425B (en) * | 2019-06-26 | 2022-05-27 | 西普曼增材科技(宁夏)有限公司 | Method for preparing spherical metal powder by electrode induction gas atomization continuous liquid flow |
| CN111519078A (en) * | 2020-04-27 | 2020-08-11 | 浙江亚通焊材有限公司 | High-nickel eutectic high-entropy alloy powder for additive manufacturing and preparation method thereof |
| CN115415532B (en) * | 2022-09-05 | 2023-07-28 | 先导薄膜材料（广东）有限公司 | Cadmium powder and preparation method thereof |
| CN118385595B (en) * | 2024-07-01 | 2024-09-24 | 西安欧中材料科技股份有限公司 | Method for preparing T15 high-speed steel powder by EIGA gas atomization process |
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| CN1270864A (en) * | 2000-04-26 | 2000-10-25 | 刘学晖 | Ultrasonic atomization of low-oxygen titanium with high-purity gas andtitanium alloy powder preparing process and product thereof |
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Address after: 310030 No.372, Jinpeng street, Sandun Industrial Park, Xihu District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Yatong New Materials Co.,Ltd. Address before: 310030 No.372, Jinpeng street, Sandun Industrial Park, Xihu District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG ASIA GENERAL SOLDERING & BRAZING MATERIAL Co.,Ltd. |