CN101837461B - Method for producing metal powder by isoionic atomization - Google Patents
Method for producing metal powder by isoionic atomization Download PDFInfo
- Publication number
- CN101837461B CN101837461B CN2010101784751A CN201010178475A CN101837461B CN 101837461 B CN101837461 B CN 101837461B CN 2010101784751 A CN2010101784751 A CN 2010101784751A CN 201010178475 A CN201010178475 A CN 201010178475A CN 101837461 B CN101837461 B CN 101837461B
- Authority
- CN
- China
- Prior art keywords
- powder
- metal
- isoionic
- atomization
- plasma
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention relates to a method for producing metal powder by isoionic atomization. The method comprises the following steps of: instantaneously increasing the temperature of metal from a room temperature to over 5000k by utilizing an isoionic electric arc; melting the metal raw material into a liquid state; blowing the liquid metal into powder by utilizing air; then, adding a great amount of cooling air to decrease the temperature to below 100 DEG C; and finally, separating solid and liquid and recovering. The isoionic atomization technology has simple powder-preparing process, short flow,instantaneous completion, less man-made quality-influencing factors, low electric energy and less man hours. By using the method, aluminum, copper, iron, nickel, silver and stainless steel powder aresuccessfully prepared. The invention has the advantages of wide powder preparation range covering heavy and light nonferrous metal, noble metal, and the like, simple process, one-step completion, good product quality, high purity reaching 99.9 percent, superfine grain diameter from 1 mm to 1 millimicron and even spherical grains, and all powder products have good fluidness without generating three wastes.
Description
Technical field
The present invention relates to powder metallurgy, i.e. the method for producing metal powder by isoionic atomization.
Background technology
The metal current powder production mainly be atomization, chemical method, electrolysis and mechanical milling method.Like Canada's world-famous INC0 carbonyl nickel powder legal system hydroxyl nickel powder.The carbonyl iron dust legal system carbonyl iron dust of Germany's BASF.These technologies are all very complicated, long flow path, and power consumption is high, and environment is had bigger pollution.
Summary of the invention
For overcome complex process in the metal current powder production, long flow path, power consumption high, environment is had the shortcoming of bigger pollution, the present invention proposes a kind of method of producing metal powder by isoionic atomization.
The method of this producing metal powder by isoionic atomization is characterized in that, technological process is following: be to utilize plasma-arc that metal temperature moment is elevated to more than the 5000k by room temperature; Raw metal is molten into liquid state; Utilize gas to jet into powder again, add a large amount of refrigerating gases then, drop to below 100 ℃; These metal-powders are cooled off rapidly, carry out gas solid separation at last and reclaim.
The equipment of plasma spraying milling method mainly comprises: the power supply of 380V, 50HZ and be not less than the air compressor machine of 0.6Pma; Power supply links to each other with power control unit; The direct current of power control unit output 30-40V, 200-400A; Positive and negative two electrodes through cable and dc source link to each other, and air compressor machine communicates through pipeline and plasma-arc origination point, and metal-powder links to each other with cooling chamber and gas solid separation recovery system through spout.
Plasma spraying technology flouring technology is simple, flow process short, the moment completion, and qualitative factor is few, electric energy is little in order to cause, man-hour is few for the people.The preparation that the present invention is successful copper, iron, nickel, silver, stainless steel powder.Advantage of the present invention is following, and 1, the scope of powder process is wide, can contain lid weight, light non-ferrous metal, noble metal etc.; 2, technology is simple, and a step accomplishes; 3, good product quality, purity can reach 99.9%, and particle diameter reaches ultra-fine level, can be from the millimeter to the millimicron (1mm-1 μ m), uniform particles all is a spherical; 4, all powder product flowabilities are all good; 5, the no three wastes produce.
Description of drawings
Fig. 1 is a process chart of the present invention
Fig. 2 is an equipment block diagram of the present invention
Fig. 3 is the Electronic Speculum figure of the silver powder produced of the present invention
Fig. 4 is the Electronic Speculum figure of the copper powder produced of the present invention
Fig. 5 is the Electronic Speculum figure of the nickel powder produced of the present invention
The specific embodiment
As can be seen from Figure 1, the method for this producing metal powder by isoionic atomization, technological process is following: utilize plasma-arc that metal temperature moment is elevated to more than the 5000k by room temperature; Raw metal is molten into liquid state; Utilize gas to jet into powder again, add a large amount of refrigerating gases then, drop to below 100 ℃; These metal-powders are cooled off rapidly, carry out gas solid separation then and reclaim.
As can be seen from Figure 2; The equipment of plasma spraying milling method mainly comprises: the power supply of 380V, 50HZ and be not less than the air compressor machine of 0.6Pma; Power supply links to each other with power control unit, the direct current of power control unit output 30-40V, 200-400A, and positive and negative two electrodes through cable and dc source link to each other; Air compressor machine communicates through pipeline and plasma-arc origination point, and metal-powder links to each other with cooling chamber and gas solid separation recovery system through spout.
The Electronic Speculum figure of the silver powder from Fig. 3, Fig. 4 and Fig. 5, copper powder, nickel powder can find out, the product particle globulate, and particle diameter is even, and product purity is high
It is following to the detailed description of the invention to lift 6 concrete embodiment below:
Embodiment 1: the production of stainless steel powder; Electric current with 35V, 400A produces plasma-arc, makes the piece of stainless steel instant melting for liquid, adds 2 cubes m/mins air blown again; The air cooling that adds 21000 cubes m/mins then; Drop to below 100 ℃, be cooled to the powder of various fineness rapidly, carry out gas solid separation then and reclaim.
Embodiment 2: the production of silver powder; Electric current with 35V, 380A produces plasma-arc, makes the silver bullion instant melting for liquid, adds 1.9 cubes m/mins air blown again; The air cooling that adds 20000 cubes m/mins then; Drop to below 100 ℃, be cooled to the powder of various fineness rapidly, carry out gas solid separation then and reclaim.
Embodiment 3: the production of nickel powder; Electric current with 35V, 350A produces plasma-arc, makes the nickel block instant melting for liquid, adds 1.8 cubes m/mins air blown again; The air cooling that adds 19000 cubes m/mins then; Drop to below 100 ℃, be cooled to the powder of various fineness rapidly, carry out gas solid separation then and reclaim.
Embodiment 4: the production of iron powder; Electric current with 35V, 300A produces plasma-arc, makes the iron block instant melting for liquid, adds 1.7 cubes m/mins nitrogen injection again; The nitrogen cooling that adds 18000 cubes m/mins then; Drop to below 100 ℃, be cooled to the powder of various fineness rapidly, carry out gas solid separation then and reclaim.
Embodiment 5: the production of copper powder; Electric current with 35V, 280A produces plasma-arc, makes the copper billet instant melting for liquid, adds 1.6 cubes m/mins air blown again; The air cooling that adds 17000 cubes m/mins then; Drop to below 100 ℃, be cooled to the powder of various fineness rapidly, carry out gas solid separation then and reclaim.
(this section is left out)
Claims (1)
1. the method for producing metal powder by isoionic atomization; Technological process is following: be to utilize plasma-arc that metal temperature moment is elevated to more than the 5000k by room temperature, raw metal is molten into liquid state, utilizes gas to jet into powder again; Add a large amount of refrigerating gases then; Drop to below 100 ℃, these metal-powders are cooled off rapidly, carry out gas solid separation at last and reclaim; The equipment of plasma spraying milling method mainly comprises: the power supply of 380V, 50HZ and be not less than the air compressor machine of 0.6Pma; Power supply links to each other with power control unit; The direct current of power control unit output 30-40V, 200-400A; Positive and negative two electrodes through cable and dc source link to each other, and air compressor machine communicates through pipeline and plasma-arc origination point, and metal-powder links to each other with cooling chamber and gas solid separation recovery system through spout; It is characterized in that the production of iron powder is with the electric current generation plasma-arc of 35V, 300A; Make the iron block instant melting for liquid; The nitrogen injection that adds 1.7 cubic metres/per minute again, the nitrogen that adds 18000 cubic metres/per minute then cools off, and drops to below 100 ℃; Be cooled to the powder of various fineness rapidly, carry out gas solid separation then and reclaim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101784751A CN101837461B (en) | 2010-05-18 | 2010-05-18 | Method for producing metal powder by isoionic atomization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101784751A CN101837461B (en) | 2010-05-18 | 2010-05-18 | Method for producing metal powder by isoionic atomization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101837461A CN101837461A (en) | 2010-09-22 |
| CN101837461B true CN101837461B (en) | 2012-03-28 |
Family
ID=42741260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101784751A Expired - Fee Related CN101837461B (en) | 2010-05-18 | 2010-05-18 | Method for producing metal powder by isoionic atomization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101837461B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537704A (en) * | 2013-03-15 | 2014-01-29 | 袁志刚 | Pneumatic atomization production method of high-purity fine spherical metal magnesium powder |
| CN103386492A (en) * | 2013-07-19 | 2013-11-13 | 江西悦安超细金属有限公司 | Preparation method for superfine spherical stainless steel powder |
| CN103769594A (en) * | 2013-11-25 | 2014-05-07 | 王利民 | Technological method and device for preparing high-purity spherical superfine/nanoscale powdered materials in plasma atomization mode |
| AU2016378993A1 (en) * | 2015-12-21 | 2018-08-02 | Aereus Technologies Inc. | Biocidal metal particles, and methods for production thereof |
| CN106848200A (en) * | 2017-01-23 | 2017-06-13 | 北京鼎能开源电池科技股份有限公司 | A kind of preparation method of lithium-ion battery lithium iron phosphate positive electrode |
| CN108524984A (en) * | 2017-03-02 | 2018-09-14 | 舒华乐有限公司 | Filtering body for killing the bacterium in fluid and virus |
| CN107983968A (en) * | 2017-12-05 | 2018-05-04 | 南通金源智能技术有限公司 | A kind of component and preparation method of 3D printing acieral powder |
| CN109750320B (en) * | 2019-03-04 | 2019-12-13 | 海安县鹰球粉末冶金有限公司 | Method for preparing metal alloy powder by atomizing electrolysis |
| CN112979009B (en) * | 2021-01-27 | 2022-07-29 | 中日友好环境保护中心(生态环境部环境发展中心) | Process for removing tetrabromobisphenol A in wastewater based on iron-carbon micro-electrolysis technology |
| CN113414398A (en) * | 2021-06-21 | 2021-09-21 | 江苏天楹等离子体科技有限公司 | Equipment and method for preparing metal powder by using plasma |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1864896A (en) * | 2005-05-20 | 2006-11-22 | 友成Tech株式会社 | Production method of metal powder |
| CA2654013A1 (en) * | 2006-06-01 | 2007-12-06 | Cvrd Inco Limited | Method for producing metal nanopowders by decomposition of metal carbonyl using an induction plasma torch |
| CN101134244A (en) * | 2007-09-06 | 2008-03-05 | 安泰科技股份有限公司 | Method for producing stainless steel powder containing nitrogen/ high nitrogen by adopting gas atomization method |
| CN101695755A (en) * | 2009-10-26 | 2010-04-21 | 江西悦安超细金属有限公司 | Method for preparing alloy powder for metal injection moulding through atomization |
-
2010
- 2010-05-18 CN CN2010101784751A patent/CN101837461B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1864896A (en) * | 2005-05-20 | 2006-11-22 | 友成Tech株式会社 | Production method of metal powder |
| CA2654013A1 (en) * | 2006-06-01 | 2007-12-06 | Cvrd Inco Limited | Method for producing metal nanopowders by decomposition of metal carbonyl using an induction plasma torch |
| CN101134244A (en) * | 2007-09-06 | 2008-03-05 | 安泰科技股份有限公司 | Method for producing stainless steel powder containing nitrogen/ high nitrogen by adopting gas atomization method |
| CN101695755A (en) * | 2009-10-26 | 2010-04-21 | 江西悦安超细金属有限公司 | Method for preparing alloy powder for metal injection moulding through atomization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101837461A (en) | 2010-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101837461B (en) | Method for producing metal powder by isoionic atomization | |
| CN108161019B (en) | Powder making method of induction heating and radio frequency plasma combined atomization powder making system | |
| CN101391307B (en) | Preparation method of fine globular tungsten powder | |
| CN112893852A (en) | Preparation method of refractory high-entropy alloy powder | |
| CN108213449A (en) | A kind of device for preparing matrix powder material | |
| CN203390198U (en) | Titanium-based powder preparation device | |
| CN103769594A (en) | Technological method and device for preparing high-purity spherical superfine/nanoscale powdered materials in plasma atomization mode | |
| JPWO2003037553A1 (en) | Method and apparatus for producing metal powder | |
| CN109207766B (en) | High-aluminum-content Cu-Al with controllable structure2O3Preparation process of nano dispersed copper alloy | |
| CN101927351A (en) | Method for preparing high temperature alloy GH 4169 metal globule by utilizing auxiliary plasma rotation electrode | |
| CN101439403A (en) | Earlier stage treatment process of raw material powder for preparing induction plasma capacitor level nano tantalum powder | |
| CN104526168A (en) | Electrofusion-formed ultra-low carbon and ultra-fine grain alloy steel material | |
| CN108526472A (en) | A kind of free arc system for spherical metal powder device and method | |
| CN113290249A (en) | Method and equipment for preparing spherical metal powder by arc-assisted plasma atomization | |
| Mellor et al. | Novel and emerging routes for titanium powder production-an overview | |
| CN102950293A (en) | Method for producing nano-aluminum powder | |
| CN1219898C (en) | Alloy powders for preparing CuCr alloy probe material and preparation thereof | |
| CN113414398A (en) | Equipment and method for preparing metal powder by using plasma | |
| JP2004183049A (en) | Method and apparatus for producing fine metal powder by gas atomization method | |
| CN110834090A (en) | Metal powder shaping, refining and purifying device and method | |
| CN110871274B (en) | Titanium alloy powder processing equipment and preparation process | |
| CN101767202A (en) | Method for preparing high-temperature alloy GH4648 prills by adopting plasma auxiliary rotary electrode | |
| CN101767201A (en) | Method for preparing titanium alloy Ti60 prills by adopting plasma auxiliary rotary electrode | |
| CN210996482U (en) | Metal powder plastic refines and purifier | |
| US11772158B2 (en) | Method for selectively oxidizing metals of an alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20210518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |