CN105642905B - A kind of plasma preparation method of nickel-base alloy spherical powder - Google Patents
A kind of plasma preparation method of nickel-base alloy spherical powder Download PDFInfo
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- CN105642905B CN105642905B CN201610167975.2A CN201610167975A CN105642905B CN 105642905 B CN105642905 B CN 105642905B CN 201610167975 A CN201610167975 A CN 201610167975A CN 105642905 B CN105642905 B CN 105642905B
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 81
- 239000000956 alloy Substances 0.000 title claims abstract description 81
- 239000000843 powder Substances 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000002844 melting Methods 0.000 claims abstract description 28
- 230000008018 melting Effects 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 22
- 229910052786 argon Inorganic materials 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 230000006698 induction Effects 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000003708 ampul Substances 0.000 claims abstract description 12
- 239000010453 quartz Substances 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012159 carrier gas Substances 0.000 claims abstract description 7
- 230000001788 irregular Effects 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 239000013078 crystal Substances 0.000 abstract description 8
- 238000010146 3D printing Methods 0.000 abstract description 4
- 238000007751 thermal spraying Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 5
- 239000011651 chromium Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910000816 inconels 718 Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910000601 superalloy Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005563 spheronization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 229910001119 inconels 625 Inorganic materials 0.000 description 1
- 229910000819 inconels 713 Inorganic materials 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
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
-
- 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
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- 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
-
- 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
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention discloses a kind of plasma preparation method of nickel-base alloy spherical powder, chooses nickel-base alloy or configuration alloy；Alloy is melted using vacuum induction melting method；The aluminium alloy of melting is sprayed, rapidly cools to form the band containing amorphous by logical argon gas by the mouth of quartz ampoule；Band enters in vacuum heat environment, and amorphous phase transition is crystalline phase；The Co-based alloy powder for forming irregular shape is crushed again；Establish energy density height and the big plasma torch of heating intensity；Using argon gas as carrier gas, raw material is sent into the core high-temperature region of plasma torch by powder feeding probe and melted；Powder nodularization room is imported, is cooled and solidified under high thermograde, is formed spherical nickel-base alloy powder particles and collect.This method expands raw material scope, the effective transformation for controlling crystal, improves the mechanical performances such as plasticity, the intensity of alloy, the product sphericity height of preparation, good fluidity, even particle size distribution, even tissue, available for thermal spraying and 3D printing technique etc..
Description
Technical field
The present invention relates to a kind of plasma preparation method of nickel-base alloy spherical powder, belong to metal dust technology of preparing
Field.
Background technology
The nickel-base alloy that can apply to 3D printing at present has：Inconel 738, have good high-temerature creep fracture strong
Degree, corrosion and heat resistant is the superalloy compared with low chromium content.Hastelloy X, at high temperature with high intensity and inoxidizability,
In up to 1200 DEG C of environment, it may have good ductility, at present, it is mainly used in aeronautical and space technology, such as combustion gas
Turbine component and burning area assembly such as transition conduit, burner pot, spray boom, blast pipe, after-burner etc.；But also because have
The performance of anticorrosion stress-resistant cracking, applied in industrial furnace, petrochemical industry and chemical process industry.Inconel 625, in high temperature
Still there is good load performance, and corrosion resistance is strong, is widely used in Aero-Space, chemical industry under conditions of about 815 DEG C
And in power industry.Inconel 713, has an excellent thermal fatigue resistance, and in 927 DEG C of special fracture strength, fits
For jet engine gas turbine blades.Inconel 718, it is the superalloy based on the hardening of iron nickel, there is good corrosion resistant
Corrosion and heat-resisting, stretching, fatigue, creep properties, suitable for various high-end applications, for example, aircraft turbine engine and continental rise turbine
Machine etc..
Due to the limitation of technical conditions, the company of the spherical Co-based alloy powder of domestic production is seldom, and it is most of be in it is low
Shelves product, it is impossible to meet high-end customer requirement.Powder used in metallurgy, particularly thermal spraying, 3D printing are spherical Ni-based with contour quality
Alloyed powder also needs import.
The content of the invention
The purpose of the present invention is to overcome the shortcomings of spherical powder institutional framework and performance, there is provided a kind of nickel-base alloy spherical powder
The plasma preparation method at end.
In order to reach above-mentioned purpose, solution of the invention is to comprise the following steps：
The first step, it is that raw material are configured to alloy to choose the element such as nickel-base alloy or Ni, Fe, Cr, Mo, Ti（Alloy ratio
Example matches according to the demand of oneself, does not influence the preparation method of the present invention）；
Second step, using vacuum induction melting method, hybrid alloys are put into quartz ampoule, is heated and led to by induction coil
Entering electric and magnetic oscillation melts alloy substantially uniformity, and the electric current of addition is 15-40A；
3rd step, it is passed through argon gas and produces air pressure, the aluminium alloy of melting is ejected into by the mouth of quartz ampoule and rotated at a high speed（No
With rotating speed obtain different thickness and amorphous amount number, 800-2000r/min is preferable）Copper Kun on, quickly cooling down
（104-109K/s under conditions of), the band containing a large amount of amorphous is formed, the vacuum of alloy is 1.0 × 10 in melting environment-3
~1.0 × 10-2, addition argon gas is -0.3~-0.8MPa；
4th step, the vacuum heat environment of certain temperature is entered containing band existing for amorphous（As long as no air just
OK）In, it is crystalline phase by amorphous phase transition, heating-up temperature is 300-1000 DEG C, time 0.5-10h, makes its homogenization of composition, is controlled
The tissue of needs is made, crystal grain thinning, reduces the fault of construction such as hollow, while improve the mechanicalnesses such as the plasticity of alloy, intensity
Energy；
5th step, then alloy bar band is crushed, form the Co-based alloy powder of irregular shape, particle diameter 100-
250 microns；
6th step, establish energy density height and the big plasma torch of heating intensity, radio-frequency power 10-40KW；
7th step, using argon gas as carrier gas, raw material is sent into the core high-temperature region of plasma torch by powder feeding probe,
Nickel-base alloy powder raw material is endothermic melting rapidly, the flow 1-10L/min for taking powder gas, and rate of feed is 1-10 kg/h, in
Throughput is 10-60L/min, and side throughput is 20-100 L/min；
8th step, the powder of melting is imported into powder nodularization room, in high thermograde（More than 2000 DEG C drop to 400
DEG C degree below）Lower rapid cooling and solidifying, forms spherical nickel-base alloy powder particles and is collected through powder collection device.
After adopting the above technical scheme, the present invention has following advantages compared with prior art：
First, different types of nickel-base alloy can be prepared, a variety of alloying elements and control composition can also be added, is expanded former
The application of material；
2nd, by vacuum induction melting method and get rid of band method and combine, alloy is melted and mixed completely, and by way of getting rid of band
The nickel-base alloy band with a large amount of amorphous is formed, can more effectively control the transformation of crystal；
3rd, heat treatment is in vacuum environment, by heat treatment, controls the tissue needed, crystal grain thinning, reduces empty
The faults of construction such as the heart, while improve the mechanical performances such as the plasticity of alloy, intensity；
4th, the invention is capable of the fusing of the completion alloy of one-time continuous, gets rid of band and heat treatment, shortens technological process；
5th, by broken alloy powder, sphericity height, good fluidity, grain are prepared using radio frequency plasma spheronization techniques
Degree is evenly distributed, the spherical Co-based alloy powder that impurity is few；
6th, the spherical powder crystal grain is tiny, even tissue, plasticity are good, intensity, hardness are high, is beaten available for thermal spraying and 3D
Print etc..
Embodiment
Embodiment one
The present embodiment provides a kind of plasma preparation method of nickel-base alloy spherical powder, comprises the steps：
The first step, it is raw material from nickel base superalloy Inconel718；
Second step, using vacuum induction melting method, hybrid alloys are put into quartz ampoule, is heated and led to by induction coil
Entering electric and magnetic oscillation melts alloy substantially uniformity, and the electric current of addition is 15A；
3rd step, it is passed through argon gas and produces air pressure, the alloy of melting is ejected into the copper of rotation at a high speed by the mouth of quartz ampoule
On Kun, rotating speed 1000r/min, under conditions of quick cooling, cooling velocity 104K/s, the band containing amorphous is formed,
The vacuum of alloy is 1.0 × 10 in melting environment-2, addition argon gas is -0.3MPa；
4th step, containing band existing for amorphous enter certain temperature vacuum heat treatment environment in, by amorphous phase turn
It is changed into crystalline phase, heating-up temperature is 300 DEG C, time 0.5h, makes its homogenization of composition, controls the tissue needed, refinement crystalline substance
Grain, the fault of construction such as hollow is reduced, while improve the mechanical performances such as the plasticity of alloy, intensity；
5th step, then alloy bar band is crushed, form the Co-based alloy powder of irregular shape, particle diameter 100-
150 microns；
6th step, establish energy density height and the big plasma torch of heating intensity, radio-frequency power 10KW；
7th step, using argon gas as carrier gas, raw material is sent into the core high-temperature region of plasma torch by powder feeding probe,
Nickel powder raw material is endothermic melting rapidly, and the flow 2L/min for taking powder gas, rate of feed 1kg/h, middle throughput are 20L/
Min, side throughput are 30L/min；
8th step, the powder of melting is imported into powder nodularization room, cooled and solidified rapidly under high thermograde, is formed
Spherical nickel-base alloy powder particles, are collected through powder collection device, and spherical powder particle diameter is 80-100 microns.
Embodiment two
The present embodiment provides a kind of plasma preparation method of nickel-base alloy spherical powder, comprises the steps：
The first step, configured in proportion from Ni, Cr, Mo, Nb, Fe, Ti, Mn, Si, C, Cu, P and S, wherein Cr be 20~
20.5, Mo be that 8~10, Nb is 3.15~4.15, Fe≤5, Ti≤0.4, Mn≤0.5, Si≤0.5, C≤0.1, Cu≤0.5, P
≤ 0.015, S≤0.015；
Second step, using vacuum induction melting method, hybrid alloys are put into quartz ampoule, is heated and led to by induction coil
Entering electric and magnetic oscillation melts alloy substantially uniformity, and the electric current of addition is 20A；
3rd step, it is passed through argon gas and produces air pressure, the alloy of melting is ejected into the copper of rotation at a high speed by the mouth of quartz ampoule
On Kun, rotating speed 1200r/min, under conditions of quick cooling, the band containing amorphous, cooling velocity 10 are formed4K/s,
The vacuum of alloy is 1.0 × 10 in melting environment-2, addition argon gas is -0.5MPa；
4th step, containing band existing for amorphous enter certain temperature vacuum heat treatment environment in, by amorphous phase turn
It is changed into crystalline phase, heating-up temperature is 500 DEG C, time 3h, makes its homogenization of composition, controls the tissue needed, crystal grain thinning,
The fault of construction such as hollow is reduced, while improves the mechanical performances such as the plasticity of alloy, intensity；
5th step, then alloy bar band is crushed, form the Co-based alloy powder of irregular shape, particle diameter 150-
200 microns；
6th step, establish energy density height and the big plasma torch of heating intensity, radio-frequency power 10KW；
7th step, using argon gas as carrier gas, raw material is sent into the core high-temperature region of plasma torch by powder feeding probe,
Nickel powder raw material is endothermic melting rapidly, the flow 4L/min for taking powder gas, rate of feed 1.3kg/h, and middle throughput is
40L/min, side throughput are 50L/min；
8th step, the powder of melting is imported into powder nodularization room, cooled and solidified rapidly under high thermograde, is formed
Spherical nickel-base alloy powder particles, are collected through powder collection device, and spherical powder particle diameter is 100-130 microns.
Embodiment three
The present embodiment provides a kind of plasma preparation method of nickel-base alloy spherical powder, comprises the steps：
The first step, from material based on nickel-base alloy Inconel718；
Second step, using vacuum induction melting method, hybrid alloys are put into quartz ampoule, is heated and led to by induction coil
Entering electric and magnetic oscillation melts alloy substantially uniformity, and the electric current of addition is 25A；
3rd step, it is passed through argon gas and produces air pressure, the alloy of melting is ejected into the copper of rotation at a high speed by the mouth of quartz ampoule
On Kun, rotating speed 1400r/min, under conditions of quick cooling, cooling velocity 105K/s, the band containing amorphous is formed,
The vacuum of alloy is 1.0 × 10 in melting environment-3, addition argon gas is -0.6MPa；
4th step, containing band existing for amorphous enter certain temperature vacuum heat treatment environment in, by amorphous phase turn
It is changed into crystalline phase, heating-up temperature is 800 DEG C, time 8h, makes its homogenization of composition, controls the tissue needed, crystal grain thinning,
The fault of construction such as hollow is reduced, while improves the mechanical performances such as the plasticity of alloy, intensity；
5th step, then alloy bar band is crushed, form the Co-based alloy powder of irregular shape, particle diameter 100-
200 microns；
6th step, establish energy density height and the big plasma torch of heating intensity, radio-frequency power 30KW；
7th step, using argon gas as carrier gas, raw material is sent into the core high-temperature region of plasma torch by powder feeding probe,
Nickel powder raw material is endothermic melting rapidly, the flow 5L/min for taking powder gas, rate of feed 1.9kg/h, and middle throughput is
50L/min, side throughput are 60L/min；
8th step, the powder of melting is imported into powder nodularization room, cooled and solidified rapidly under high thermograde, is formed
Spherical nickel-base alloy powder particles, are collected through powder collection device, and spherical powder particle diameter is 100-150 microns.
In a word, the present invention uses vacuum induction melting method, and hybrid alloys are put into quartz ampoule, heated by induction coil
And being passed through electric and magnetic oscillation melts alloy substantially uniformity；And prepare with nickel-base alloy existing for a large amount of amorphous, not only expand
Raw material application, and the tissue needed by heat treatment, control, crystal grain thinning, the fault of construction such as hollow is reduced,
Improve the mechanical performances such as plasticity, the intensity of alloy simultaneously；With reference to radio frequency plasma powder spheronization techniques, sphericity is prepared
The spherical Co-based alloy powder that height, good fluidity, even particle size distribution, even tissue, plasticity are good, intensity is good, available for heat
Spraying and 3D printing technique etc., the product quality and performances prepared are more preferable.
Claims (7)
- A kind of 1. plasma preparation method of nickel-base alloy spherical powder, it is characterised in that including：The first step, it is that raw material are configured to alloy to choose the element such as nickel-base alloy or Ni, Fe, Cr, Mo, Ti；Second step, using vacuum induction melting method, hybrid alloys are put into quartz ampoule, are heated by induction coil and are passed through electricity Magnetic vibration melts alloy substantially uniformity；3rd step, it is passed through argon gas and produces air pressure, the aluminium alloy of melting is ejected into the copper Kun of rotation at a high speed by the mouth of quartz ampoule On, under conditions of quick cooling, form the band containing amorphous；4th step, enter containing band existing for amorphous in vacuum heat environment, be crystalline phase by amorphous phase transition；5th step, then alloy bar band is crushed, form the Co-based alloy powder of irregular shape；6th step, establish energy density height and the big plasma torch of heating intensity；7th step, using argon gas as carrier gas, raw material is sent into the core high-temperature region of plasma torch by powder feeding probe, it is Ni-based Alloy powder raw material is endothermic melting rapidly；The flow 1-10L/min of powder feeding carrier gas, rate of feed are 1-10 kg/h, and middle throughput is 10-60L/min, side throughput are 20-100 L/min；8th step, the powder of melting is imported into powder nodularization room, rapid cooling and solidifying, forms spherical nickel-base alloy powder particles simultaneously Collected through powder collection device.
- A kind of 2. plasma preparation method of nickel-base alloy spherical powder as claimed in claim 1, it is characterised in that：It is described Second step, the electric current that induction coil adds is 15-40A.
- A kind of 3. plasma preparation method of nickel-base alloy spherical powder as claimed in claim 1, it is characterised in that：It is described 3rd step, the vacuum of alloy is 1.0 × 10 in process environments-3~1.0 × 10-2, addition argon gas is -0.3~-0.8MPa.
- A kind of 4. plasma preparation method of nickel-base alloy spherical powder as claimed in claim 1, it is characterised in that：It is described 4th step, the heating-up temperature of vacuum heat environment is 300-1000 DEG C, time 0.5-10h.
- A kind of 5. plasma preparation method of nickel-base alloy spherical powder as claimed in claim 1, it is characterised in that：It is described 5th step, the particle diameter for forming the Co-based alloy powder of irregular shape are 100-250 microns.
- A kind of 6. plasma preparation method of nickel-base alloy spherical powder as claimed in claim 1, it is characterised in that：It is described 6th step, the radio-frequency power of plasma torch is 10-40KW.
- A kind of 7. plasma preparation method of nickel-base alloy spherical powder as claimed in claim 1, it is characterised in that：It is described 8th step, the spherical powder of formation is 50-100 microns.
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| CN106270493B (en) * | 2016-08-03 | 2020-06-30 | 成都锦钛精工科技有限公司 | Metal ceramic composite alloy spherical powder and preparation method thereof |
| CN109648082B (en) * | 2019-01-24 | 2021-08-06 | 华南理工大学 | A 4D printing method and application of titanium-nickel shape memory alloy |
| CN111792849A (en) * | 2019-04-09 | 2020-10-20 | 武汉理工大学 | A method for preparing quartz glass microspheres by radio frequency plasma |
| CN110090949B (en) * | 2019-06-12 | 2020-08-11 | 广东省材料与加工研究所 | A kind of nickel-titanium alloy spherical powder and its preparation method and application |
| CN112792349B (en) * | 2021-04-08 | 2021-06-29 | 西安欧中材料科技有限公司 | Method for reducing special-shaped powder in high-alloying nickel-based alloy powder |
| CN113372127A (en) * | 2021-07-16 | 2021-09-10 | 中钢集团洛阳耐火材料研究院有限公司 | Anti-sintering YTaO4Preparation method of spherical spraying powder |
| CN115502405A (en) * | 2022-09-07 | 2022-12-23 | 金川集团股份有限公司 | A method for preparing spherical nickel powder by using controllable plasma method |
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| CN101767203B (en) * | 2010-01-05 | 2011-11-16 | 北京科技大学 | Minute spherical hydrogen-storage alloy powder preparation method |
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