JPS644401A - Production of spheroidal copper powder - Google Patents

Production of spheroidal copper powder

Info

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
Application number
JP62157255A
Other languages
Japanese (ja)
Inventor
Masayoshi Yoshitake
Shigeru Kito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fukuda Metal Foil and Powder Co Ltd
Original Assignee
Fukuda Metal Foil and Powder Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fukuda Metal Foil and Powder Co Ltd filed Critical Fukuda Metal Foil and Powder Co Ltd
Priority to JP62157255A priority Critical patent/JPS644401A/en
Publication of JPS644401A publication Critical patent/JPS644401A/en
Pending legal-status Critical Current

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  • Powder Metallurgy (AREA)

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.
JP62157255A 1987-06-24 1987-06-24 Production of spheroidal copper powder Pending JPS644401A (en)

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)

* Cited by examiner, † Cited by third party
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 its manufacturing method
JP2002222613A (en) * 2000-09-14 2002-08-09 Dowa Mining Co Ltd Copper powder and copper powder particles for conductive paste and 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 producing 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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 its manufacturing method
JP2002222613A (en) * 2000-09-14 2002-08-09 Dowa Mining Co Ltd Copper powder and copper powder particles for conductive paste and 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 producing 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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