CN106853536A - The method for preparing 3D printing CoCrWMo alloy spherical powder - Google Patents
The method for preparing 3D printing CoCrWMo alloy spherical powder Download PDFInfo
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- CN106853536A CN106853536A CN201611174431.5A CN201611174431A CN106853536A CN 106853536 A CN106853536 A CN 106853536A CN 201611174431 A CN201611174431 A CN 201611174431A CN 106853536 A CN106853536 A CN 106853536A
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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
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
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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
- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
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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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
The method for preparing 3D printing CoCrWMo alloy spherical powder, the CoCrWMo alloy spherical powder prepared using plasma rotating electrode process, its oxygen content is low, particle size distribution is narrow, spherical rate is good, surface smoothness is high；This method can prepare the interval alloy powder of different grain size by controlling the parameters such as the rotating speed of alloy bar, electric current, the voltage of plasma gun, and the apparent density of powder, tap density and mobility are excellent, can be used for biologic medical 3D printing field.
Description
Technical field
The invention belongs to powder metallurgical technology, and in particular to one kind prepares 3D printing CoCrWMo alloy spherical powder
The method at end, especially emphasizes the technological parameter selection of preparation method.
Background technology
Cobalt-base alloys is received and is widely applied due to its excellent thermostrength, corrosion resisting property and anti-wear performance,
Even irreplaceable in some operating mode rugged environments, such as nuclear power industry, gas turbine industry, medical domain and aviation is navigated
Its industry.The preparation method of cobalt-base alloys mainly includes casting, deformation, thermal spraying, high temperature insostatic pressing (HIP), selective laser fusing etc..Casting
It is to begin to be used in the manufacture of artificial joint prosthesis, foreign study personnel in the 50's of last century to make CoCrMo alloys
Technical study is carried out to casting vitallium, it is found that its corrosion resistance is stronger.With the development of manufacturing technology in decades,
The increasing material manufacturing method of CoCrMo alloys is also progressively ripe, at aspects such as personalized, customization, is had more than conventional machining process
Advantage, and profiled member has good performance.Increasing scholar is melted using selective laser fusing, electron beam constituency both at home and abroad
The technologies such as change are molded all kinds of cobalt-base alloys, and wide application has been obtained in biologic medical field.
At present, the preparation method of 3D printing cobalt-base alloys spherical powder is gas atomization（Gas Atomization,
GA）, the method advantage of lower cost, but powder degree of purity is poor, is often accompanied by the defects such as satellite powder, hollow powder, these performances pair
The application of 3D printing is totally unfavorable.
The content of the invention
To overcome above-mentioned the deficiencies in the prior art, 3D printing is prepared it is an object of the invention to provide plasma rotating electrode process
With the method for CoCrWMo alloy spherical powder, plasma rotating electrode process（Plasma Rotating Electrode
Process, PREP）The oxygen content for preparing powder is lower, particle size distribution is narrower, spherical rate more preferably, and powder pine dress
Density and mobility are significantly better than the powder of GA methods preparation, and Co-based alloy powder prepared by PREP methods has more in 3D printing field
Wide prospect.
To achieve the above object, the technical solution adopted in the present invention is：Prepare 3D printing CoCrWMo alloy spherical powder
The method at end, it is characterised in that comprise the following steps：
1）CoCrWMo cast alloy bars are obtained using secondary and above vacuum consumable induction melting, and are finish-machined to alloy bar
Material；
2）After the powder room processed suction of article on plasma rotation electrode powder manufacturing apparatus, He, Ar mixed gas 0.7 are filled with to powder room processed
~ 0.9MPa, He gas account for 80~90%, Ar gas and account for 20~10%；
3）Plasma gun electric current is 1100 ~ 1500A, and voltage is 50 ~ 65V, and the rotating speed of alloy bar is 14000 ~ 18000r/min,
The distance between plasma gun and alloy bar are 30 ~ 50mm, and the alloy stick end of ultrahigh speed rotation is in coaxial plasma
It is fused into liquid film in the presence of electric arc heated source, and throws away to electrode tip outer rim under the action of the centrifugal force, balling-up is crushed in the air
And rapid solidification, the powder catcher below powder room processed is eventually fallen into, CoCrWMo alloy spherical powder is obtained.
Step 1）The described a diameter of 70 ~ 80mm of alloy bar, length be 600 ~ 700mm, surface roughness≤2.0 μm,
Linearity≤0.5mm/700mm.
The vacuum of described powder room processed should reach 4 ~ 5 × 10-5mmHg。
It is 0 ~ 250 μm that described CoCrWMo alloy sphericals powder size is interval, and its mobility is 14.1 ~ 15.1s, pine dress
Density is 5.08 ~ 5.18g/cm3, tap density is 5.36 ~ 5.63g/cm3。
It is 0 ~ 45 μm that described CoCrWMo alloy sphericals powder size is interval, and its recovery rate is 15 ~ 35%.
Described CoCrWMo cast alloy bar includes following components：By mass percentage, 25 ~ 27% Cr, 4 ~ 5%
Mo, 0.08 ~ 0.13% Ni, 0.85 ~ 1.10% Si, 4.50 ~ 4.99% W, 0.01 ~ 0.02% C, remaining is Co.
The beneficial effects of the invention are as follows：
A. the CoCrWMo alloy spherical powder sphericity rates using the inventive method preparation are high（>99%）, surface smoothness is good, sees
Accompanying drawing 1.
B. this method can prepare difference by controlling the parameters such as the rotating speed of alloy bar, electric current, the voltage of plasma gun
The alloy powder of grain size intervals.
The processing performances such as alloy powder mobility, apparent density, the tap density that c. prepared by this method are good.
Brief description of the drawings
Fig. 1 is the pattern of CoCrWMo alloy spherical powder.
Fig. 2 is the CoCrWMo unsized patterns of alloy spherical powder prepared by embodiment 1.
Fig. 3 is the pattern of 0 ~ 45 μm of CoCrWMo alloy sphericals powder prepared by embodiment 1.
Specific embodiment
The present invention prepares 3D printing CoCrWMo alloy spherical powder, ultrahigh speed rotation using plasma rotating electrode process
Alloy stick end be fused into liquid film in the presence of coaxial plasma arc heating source, and under the action of the centrifugal force to electricity
Extreme outer rim is thrown away, and balling-up and rapid solidification are crushed in the air, eventually falls into the powder catcher below powder room processed.
Embodiment 1
1）CoCrWMo cast alloy bars are obtained using secondary and above vacuum consumable induction melting, and are finish-machined to alloy bar
Material；Finishing is obtained the alloy a diameter of 75mm of bar, and length is 670mm, and surface roughness is 2.0 μm, and linearity is 0.5mm/
670mm；
2）After alloy bar is loaded into powder manufacturing apparatus Transmission Room, close the powder room processed of plasma rotating electrode powder manufacturing apparatus and take out true
Sky, when vacuum reaches 4 × 10-5After mmHg, it is filled with He, Ar mixed gas 0.7MPa, He gas to powder room processed and accounts for 80%, Ar gas and account for
20%；
3）Plasma gun electric current is 1100A, and voltage is 50V, and the rotating speed of alloy bar is 14000r/min, plasma gun and alloy
The distance between bar is 30mm, and obtained CoCrWMo alloy sphericals powder is fallen into powder catcher, and its pattern is shown in accompanying drawing 2.
It can be found that the spherical rate of powder is high, surface smoothness is good.After testing, the mobility of alloy powder is 15.1s, and apparent density is
5.08g/cm3, tap density is 5.36g/cm3。
After alloy powder is sieved through 325 eye mesh screens, 0 ~ 45 μm of powder yield is 15%, and its pattern is shown in accompanying drawing 3.
Embodiment 2
1）CoCrWMo cast alloy bars are obtained using secondary and above vacuum consumable induction melting, and are finish-machined to alloy bar
Material, finishing is obtained the alloy a diameter of 75mm of bar, and length is 670mm, and surface roughness is 1.8 μm, and linearity is 0.29mm/
670mm；
2）After alloy bar is loaded into powder manufacturing apparatus Transmission Room, close the powder room processed of plasma rotating electrode powder manufacturing apparatus and take out true
Sky, when vacuum reaches 4 × 10-5After mmHg, it is filled with He, Ar mixed gas 0.8MPa, He gas to powder room processed and accounts for 85%, Ar gas and account for
15%；
3）Plasma gun electric current is 1300A, and voltage is 60V, and the rotating speed of alloy bar is 16000r/min, plasma gun and alloy
The distance between bar is 40mm, and obtained CoCrWMo alloy sphericals powder is fallen into powder catcher.It can be found that powder ball
Form quotient is high, and surface smoothness is good.After testing, the mobility of CoCrWMo alloy sphericals powder is 14.7s, and apparent density is
5.13g/cm3, tap density is 5.46g/cm3。
After CoCrWMo alloy sphericals powder is sieved through 325 eye mesh screens, 0 ~ 45 μm of powder yield is 24%.
Embodiment 3
1）CoCrWMo cast alloy bars are obtained using secondary and above vacuum consumable induction melting, and are finish-machined to alloy bar
Material；Finishing is obtained the alloy a diameter of 80mm of bar, and length is 700mm, and surface roughness is 1.6 μm, and linearity is 0.25mm/
670mm；
2）After alloy bar is loaded into powder manufacturing apparatus Transmission Room, close the powder room processed of plasma rotating electrode powder manufacturing apparatus and take out true
Sky, when vacuum reaches 5 × 10-5After mmHg, it is filled with He, Ar mixed gas 0.9MPa, He gas to powder room processed and accounts for 90%, Ar gas and account for
10%；
3）Plasma gun electric current is 1500A, and voltage is 65V, and the rotating speed of alloy bar is 18000r/min, plasma gun and alloy
The distance between bar is 50mm, and obtained CoCrWMo alloy sphericals powder is fallen into powder catcher.It can be found that powder ball
Form quotient is high, and surface smoothness is good.After testing, the mobility of CoCrWMo alloy sphericals powder is 14.1s, and apparent density is
5.18g/cm3, tap density is 5.63g/cm3。
After CoCrWMo alloy sphericals powder is sieved through 325 eye mesh screens, 0 ~ 45 μm of powder yield is 35%.
Claims (10)
1. the method for preparing 3D printing CoCrWMo alloy spherical powder, it is characterised in that comprise the following steps：
1）CoCrWMo cast alloy bars are obtained using secondary and above vacuum consumable induction melting, and are finish-machined to alloy bar
Material；
2）After the powder room processed suction of article on plasma rotation electrode powder manufacturing apparatus, He, Ar mixed gas 0.7 are filled with to powder room processed
~0.9MPa；
3）Plasma gun electric current is 1100 ~ 1500A, and voltage is 50 ~ 65V, and the rotating speed of alloy bar is 14000 ~ 18000r/min,
The distance between plasma gun and alloy bar are 30 ~ 50mm, and the alloy stick end of ultrahigh speed rotation is in coaxial plasma
It is fused into liquid film in the presence of electric arc heated source, and throws away to electrode tip outer rim under the action of the centrifugal force, balling-up is crushed in the air
And rapid solidification, the powder catcher below powder room processed is eventually fallen into, CoCrWMo alloy spherical powder is obtained.
2. it is according to claim 1 to prepare the 3D printing method of CoCrWMo alloy spherical powder, it is characterised in that step
Rapid 1）The described a diameter of 70 ~ 80mm of alloy bar, length be 600 ~ 700mm, surface roughness≤2.0 μm, linearity≤
0.5mm/700mm。
3. it is according to claim 1 to prepare the 3D printing method of CoCrWMo alloy spherical powder, it is characterised in that institute
The vacuum of the powder room processed stated should reach 4 ~ 5 × 10-5mmHg。
4. it is according to claim 1 to prepare the 3D printing method of CoCrWMo alloy spherical powder, it is characterised in that institute
It is 0 ~ 250 μm that the CoCrWMo alloy sphericals powder size stated is interval, and its mobility is 14.1 ~ 15.1s, apparent density is 5.08 ~
5.18g/cm3, tap density is 5.36 ~ 5.63g/cm3。
5. it is according to claim 3 to prepare the 3D printing method of CoCrWMo alloy spherical powder, it is characterised in that institute
The CoCrWMo alloy sphericals powder size interval stated is 0 ~ 45 μm, and its recovery rate is 15 ~ 35%.
6. it is according to claim 1 to prepare the 3D printing method of CoCrWMo alloy spherical powder, it is characterised in that institute
The He gas stated accounts for 80~90%, Ar gas and accounts for 20~10%.
7. it is according to claim 1 to prepare the 3D printing method of CoCrWMo alloy spherical powder, it is characterised in that institute
The CoCrWMo cast alloy bar stated includes following components：By mass percentage, 25 ~ 27% Cr, 4 ~ 5% Mo, 0.08 ~
0.13% Ni, 0.85 ~ 1.10% Si, 4.50 ~ 4.99% W, 0.01 ~ 0.02% C, remaining is Co.
8. it is according to claim 1 to prepare the 3D printing method of CoCrWMo alloy spherical powder, it is characterised in that bag
Include following steps：
1）CoCrWMo cast alloy bars are obtained using secondary and above vacuum consumable induction melting, and are finish-machined to alloy bar
Material；Finishing is obtained the alloy a diameter of 75mm of bar, and length is 670mm, and surface roughness is 2.0 μm, and linearity is 0.5mm/
670mm；
2）After alloy bar is loaded into powder manufacturing apparatus Transmission Room, close the powder room processed of plasma rotating electrode powder manufacturing apparatus and take out true
Sky, when vacuum reaches 4 × 10-5After mmHg, it is filled with He, Ar mixed gas 0.7MPa, He gas to powder room processed and accounts for 80%, Ar gas and account for
20%；
3）Plasma gun electric current is 1100A, and voltage is 50V, and the rotating speed of alloy bar is 14000r/min, plasma gun and alloy
The distance between bar is 30mm, and obtained CoCrWMo alloy sphericals powder is fallen into powder catcher, and its pattern is shown in accompanying drawing 2；
It can be found that the spherical rate of powder is high, surface smoothness is good；
After testing, the mobility of alloy powder is 15.1s, and apparent density is 5.08g/cm3, tap density is 5.36g/cm3。
9. it is according to claim 1 to prepare the 3D printing method of CoCrWMo alloy spherical powder, it is characterised in that bag
Include following steps：
1）CoCrWMo cast alloy bars are obtained using secondary and above vacuum consumable induction melting, and are finish-machined to alloy bar
Material, finishing is obtained the alloy a diameter of 75mm of bar, and length is 670mm, and surface roughness is 1.8 μm, and linearity is 0.29mm/
670mm；
2）After alloy bar is loaded into powder manufacturing apparatus Transmission Room, close the powder room processed of plasma rotating electrode powder manufacturing apparatus and take out true
Sky, when vacuum reaches 4 × 10-5After mmHg, it is filled with He, Ar mixed gas 0.8MPa, He gas to powder room processed and accounts for 85%, Ar gas and account for
15%；
3）Plasma gun electric current is 1300A, and voltage is 60V, and the rotating speed of alloy bar is 16000r/min, plasma gun and alloy
The distance between bar is 40mm, and obtained CoCrWMo alloy sphericals powder is fallen into powder catcher；
It can be found that the spherical rate of powder is high, surface smoothness is good；
After testing, the mobility of CoCrWMo alloy sphericals powder is 14.7s, and apparent density is 5.13g/cm3, tap density is
5.46g/cm3。
10. it is according to claim 1 to prepare the 3D printing method of CoCrWMo alloy spherical powder, it is characterised in that bag
Include following steps：
1）CoCrWMo cast alloy bars are obtained using secondary and above vacuum consumable induction melting, and are finish-machined to alloy bar
Material；Finishing is obtained the alloy a diameter of 80mm of bar, and length is 700mm, and surface roughness is 1.6 μm, and linearity is 0.25mm/
670mm；
2）After alloy bar is loaded into powder manufacturing apparatus Transmission Room, close the powder room processed of plasma rotating electrode powder manufacturing apparatus and take out true
Sky, when vacuum reaches 5 × 10-5After mmHg, it is filled with He, Ar mixed gas 0.9MPa, He gas to powder room processed and accounts for 90%, Ar gas and account for
10%；
3）Plasma gun electric current is 1500A, and voltage is 65V, and the rotating speed of alloy bar is 18000r/min, plasma gun and alloy
The distance between bar is 50mm, and obtained CoCrWMo alloy sphericals powder is fallen into powder catcher；
It can be found that the spherical rate of powder is high, surface smoothness is good；
After testing, the mobility of CoCrWMo alloy sphericals powder is 14.1s, and apparent density is 5.18g/cm3, tap density is
5.63g/cm3。
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900368A (en) * | 2017-12-21 | 2018-04-13 | 西安欧中材料科技有限公司 | A kind of preparation method of MCrAlY alloy powder used for plasma spraying |
| CN107999779A (en) * | 2017-12-21 | 2018-05-08 | 西安欧中材料科技有限公司 | The electron beam melting increasing material manufacturing method of CoCrMo powder based on PREP techniques |
| CN108247049A (en) * | 2017-12-21 | 2018-07-06 | 西安欧中材料科技有限公司 | A kind of selective laser increasing material manufacturing method using CoCrMo alloy powders |
| CN109014230A (en) * | 2018-08-31 | 2018-12-18 | 金堆城钼业股份有限公司 | A kind of preparation method of molybdenum grid |
| CN110860686A (en) * | 2019-10-25 | 2020-03-06 | 西安宝德九土新材料有限公司 | Small-particle-size cobalt-chromium-tungsten-molybdenum alloy spherical powder and preparation method thereof |
| CN111014706A (en) * | 2019-10-31 | 2020-04-17 | 西安欧中材料科技有限公司 | Cobalt-chromium-tungsten-molybdenum alloy powder for biomedical 3D printing and preparation method thereof |
| CN111054915A (en) * | 2019-12-17 | 2020-04-24 | 南通金源智能技术有限公司 | 3D printing metal powder for dental fixed and movable restoration and preparation method thereof |
| CN113649582A (en) * | 2021-08-19 | 2021-11-16 | 西安欧中材料科技有限公司 | Metal liquid film monitoring control system and method based on plasma rotating electrode atomization |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009221550A (en) * | 2008-03-17 | 2009-10-01 | Hitachi Metals Ltd | Powder production machine, and powder production method |
| CN105537603A (en) * | 2016-03-14 | 2016-05-04 | 西安欧中材料科技有限公司 | Preparing method for ultra-fine high-purity Ti2AlNb alloy powder |
| CN105624474A (en) * | 2016-04-11 | 2016-06-01 | 西安欧中材料科技有限公司 | Preparation method of superfine high-grade spherical EP741NP alloy powder |
| CN105689730A (en) * | 2016-02-24 | 2016-06-22 | 西安欧中材料科技有限公司 | Method for preparing Inconel 625 alloy spherical powder |
| CN105798315A (en) * | 2016-04-11 | 2016-07-27 | 西安欧中材料科技有限公司 | Preparation method for high-quality spherical niobium powder |
-
2016
- 2016-12-19 CN CN201611174431.5A patent/CN106853536A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009221550A (en) * | 2008-03-17 | 2009-10-01 | Hitachi Metals Ltd | Powder production machine, and powder production method |
| CN105689730A (en) * | 2016-02-24 | 2016-06-22 | 西安欧中材料科技有限公司 | Method for preparing Inconel 625 alloy spherical powder |
| CN105537603A (en) * | 2016-03-14 | 2016-05-04 | 西安欧中材料科技有限公司 | Preparing method for ultra-fine high-purity Ti2AlNb alloy powder |
| CN105624474A (en) * | 2016-04-11 | 2016-06-01 | 西安欧中材料科技有限公司 | Preparation method of superfine high-grade spherical EP741NP alloy powder |
| CN105798315A (en) * | 2016-04-11 | 2016-07-27 | 西安欧中材料科技有限公司 | Preparation method for high-quality spherical niobium powder |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900368A (en) * | 2017-12-21 | 2018-04-13 | 西安欧中材料科技有限公司 | A kind of preparation method of MCrAlY alloy powder used for plasma spraying |
| CN107999779A (en) * | 2017-12-21 | 2018-05-08 | 西安欧中材料科技有限公司 | The electron beam melting increasing material manufacturing method of CoCrMo powder based on PREP techniques |
| CN108247049A (en) * | 2017-12-21 | 2018-07-06 | 西安欧中材料科技有限公司 | A kind of selective laser increasing material manufacturing method using CoCrMo alloy powders |
| CN109014230A (en) * | 2018-08-31 | 2018-12-18 | 金堆城钼业股份有限公司 | A kind of preparation method of molybdenum grid |
| CN109014230B (en) * | 2018-08-31 | 2021-11-05 | 金堆城钼业股份有限公司 | Preparation method of molybdenum metal grid |
| CN110860686A (en) * | 2019-10-25 | 2020-03-06 | 西安宝德九土新材料有限公司 | Small-particle-size cobalt-chromium-tungsten-molybdenum alloy spherical powder and preparation method thereof |
| CN111014706A (en) * | 2019-10-31 | 2020-04-17 | 西安欧中材料科技有限公司 | Cobalt-chromium-tungsten-molybdenum alloy powder for biomedical 3D printing and preparation method thereof |
| CN111054915A (en) * | 2019-12-17 | 2020-04-24 | 南通金源智能技术有限公司 | 3D printing metal powder for dental fixed and movable restoration and preparation method thereof |
| CN113649582A (en) * | 2021-08-19 | 2021-11-16 | 西安欧中材料科技有限公司 | Metal liquid film monitoring control system and method based on plasma rotating electrode atomization |
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Application publication date: 20170616 |