JPS644401A - Production of spheroidal copper powder - Google Patents
Production of spheroidal copper powderInfo
- Publication number
- JPS644401A JPS644401A JP62157255A JP15725587A JPS644401A JP S644401 A JPS644401 A JP S644401A JP 62157255 A JP62157255 A JP 62157255A JP 15725587 A JP15725587 A JP 15725587A JP S644401 A JPS644401 A JP S644401A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- copper powder
- impingement
- sprayed
- spheroidal
- 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.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title abstract 9
- 229910052802 copper Inorganic materials 0.000 abstract 4
- 239000010949 copper Substances 0.000 abstract 4
- 239000012530 fluid Substances 0.000 abstract 3
- 230000001788 irregular Effects 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Abstract
PURPOSE:To inexpensively produce fine spherodial copper powder in which respective copper powder particles are spheroidal and contain extremely few flocculated particles by bringing sprayed copper powders having irregular shapes into impingement against each other with a fluid energy mill which is not equipped with impingement boards. CONSTITUTION:Molten copper is discharged from the fine hole of a vessel and a compressed gas or water flow jet is blown thereto to splash the copper and to produce the sprayed copper having the irregular shapes. The copper powder having <=10mum grain size is sprayed and is brought into impingement against each other with the fluid energy mill which uses the air as fluid and is not equipped with the impingement boards, by which the copper powder having the spheroidal shape is inexpensively produced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157255A JPS644401A (en) | 1987-06-24 | 1987-06-24 | Production of spheroidal copper powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157255A JPS644401A (en) | 1987-06-24 | 1987-06-24 | Production of spheroidal copper powder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS644401A true JPS644401A (en) | 1989-01-09 |
Family
ID=15645653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62157255A Pending JPS644401A (en) | 1987-06-24 | 1987-06-24 | Production of spheroidal copper powder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS644401A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02263901A (en) * | 1989-04-04 | 1990-10-26 | Daido Steel Co Ltd | Powder for metal injection-molding and manufacture thereof |
JP2002222613A (en) * | 2000-09-14 | 2002-08-09 | Dowa Mining Co Ltd | Copper powder for conductive paste, copper powder particles and the conductive paste |
JP2004169056A (en) * | 2002-11-15 | 2004-06-17 | Mitsui Mining & Smelting Co Ltd | Copper powder for conductive paste, conductive paste, and method for manufacturing copper powder for conductive paste |
JP2007165326A (en) * | 2007-01-09 | 2007-06-28 | Dowa Holdings Co Ltd | Copper powder for conductive paste and manufacturing method thereof |
CN103273054A (en) * | 2011-10-14 | 2013-09-04 | 元磁新型材料(苏州)有限公司 | Copper powder and heat radiating piece using same |
WO2023126830A1 (en) | 2021-12-27 | 2023-07-06 | Tata Steel Limited | A method of producing spherical copper powder and a product thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52111403A (en) * | 1976-03-15 | 1977-09-19 | Daido Steel Co Ltd | Stainless alloy steel powder with minimum contamination and process for production thereof |
-
1987
- 1987-06-24 JP JP62157255A patent/JPS644401A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52111403A (en) * | 1976-03-15 | 1977-09-19 | Daido Steel Co Ltd | Stainless alloy steel powder with minimum contamination and process for production thereof |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02263901A (en) * | 1989-04-04 | 1990-10-26 | Daido Steel Co Ltd | Powder for metal injection-molding and manufacture thereof |
JP2002222613A (en) * | 2000-09-14 | 2002-08-09 | Dowa Mining Co Ltd | Copper powder for conductive paste, copper powder particles and the conductive paste |
JP2004169056A (en) * | 2002-11-15 | 2004-06-17 | Mitsui Mining & Smelting Co Ltd | Copper powder for conductive paste, conductive paste, and method for manufacturing copper powder for conductive paste |
JP2007165326A (en) * | 2007-01-09 | 2007-06-28 | Dowa Holdings Co Ltd | Copper powder for conductive paste and manufacturing method thereof |
CN103273054A (en) * | 2011-10-14 | 2013-09-04 | 元磁新型材料(苏州)有限公司 | Copper powder and heat radiating piece using same |
WO2023126830A1 (en) | 2021-12-27 | 2023-07-06 | Tata Steel Limited | A method of producing spherical copper powder and a product thereof |
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