JPS56142803A - Preparation of composite powder - Google Patents

Preparation of composite powder

Info

Publication number
JPS56142803A
JPS56142803A JP4387580A JP4387580A JPS56142803A JP S56142803 A JPS56142803 A JP S56142803A JP 4387580 A JP4387580 A JP 4387580A JP 4387580 A JP4387580 A JP 4387580A JP S56142803 A JPS56142803 A JP S56142803A
Authority
JP
Japan
Prior art keywords
powder
silver
mixture
acetylene
composite powder
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
JP4387580A
Other languages
Japanese (ja)
Inventor
Shigeo Shioda
Kiyokazu Kojima
Takeshi Harada
Kazutoshi Matsushima
Hitoshi Tsuji
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.)
Tanaka Kikinzoku Kogyo KK
Original Assignee
Tanaka Kikinzoku Kogyo KK
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 Tanaka Kikinzoku Kogyo KK filed Critical Tanaka Kikinzoku Kogyo KK
Priority to JP4387580A priority Critical patent/JPS56142803A/en
Publication of JPS56142803A publication Critical patent/JPS56142803A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the composite powder which is useful for electrical contact material and consisting of a solidified mixture containing metallic particles dispersed uniformly and minutely in a silver matrix by a method wherein a mixture of silver powder and powder of metals having no solid solubility for silver is flame sprayed with gas and is then quenched.
CONSTITUTION: The silver powder and the powder of at least one metal A having no solid solubility for silver, such as Ni, Cr, Fe, Co, W, Mo or the like are mechanically mixed with each other. The powder mixture is placed in a powder container 2, is introduced into a gas pipe 5 of a burner 4 such as an acetylene burner and is conveyed to a nozzle 6 by oxygen-acetylene carrier gas. Then the powder mixture 1 is flame sprayed through the combustion of acetylene at the nozzle 6. The molten mixture of silver and the metal A thus sprayed is introduced into a water tank 7 and is solidified by quenching it in water 8 to obtain the composite powder 9. By using the composite powder 9 thus treated, an electrical contact having excellent resistance to fusion and low contact resistance and the like can be manufactured.
COPYRIGHT: (C)1981,JPO&Japio
JP4387580A 1980-04-03 1980-04-03 Preparation of composite powder Pending JPS56142803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4387580A JPS56142803A (en) 1980-04-03 1980-04-03 Preparation of composite powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4387580A JPS56142803A (en) 1980-04-03 1980-04-03 Preparation of composite powder

Publications (1)

Publication Number Publication Date
JPS56142803A true JPS56142803A (en) 1981-11-07

Family

ID=12675868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4387580A Pending JPS56142803A (en) 1980-04-03 1980-04-03 Preparation of composite powder

Country Status (1)

Country Link
JP (1) JPS56142803A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970702A (en) * 1982-10-18 1984-04-21 Taiho Kogyo Co Ltd Production of spherical powder
US5198015A (en) * 1990-06-21 1993-03-30 Matsushita Electric Works, Ltd. Silver base electrical contact material and method of making the same
KR101174353B1 (en) 2010-12-10 2012-08-16 주식회사 케이지에스엠 Apparatus for preparing silver granule
CN103635273A (en) * 2011-05-18 2014-03-12 东北泰克诺亚奇股份有限公司 Metallic powder production method and metallic powder production device
CN107042301A (en) * 2017-03-14 2017-08-15 常熟市双月机械有限公司 A kind of valve guide bushing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5360360A (en) * 1976-11-11 1978-05-30 Tanaka Precious Metal Ind Method of producing composite silverrnickel powder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5360360A (en) * 1976-11-11 1978-05-30 Tanaka Precious Metal Ind Method of producing composite silverrnickel powder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970702A (en) * 1982-10-18 1984-04-21 Taiho Kogyo Co Ltd Production of spherical powder
US5198015A (en) * 1990-06-21 1993-03-30 Matsushita Electric Works, Ltd. Silver base electrical contact material and method of making the same
KR101174353B1 (en) 2010-12-10 2012-08-16 주식회사 케이지에스엠 Apparatus for preparing silver granule
CN103635273A (en) * 2011-05-18 2014-03-12 东北泰克诺亚奇股份有限公司 Metallic powder production method and metallic powder production device
CN107042301A (en) * 2017-03-14 2017-08-15 常熟市双月机械有限公司 A kind of valve guide bushing

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