JPS57145901A - Production of electric contact point - Google Patents

Production of electric contact point

Info

Publication number
JPS57145901A
JPS57145901A JP56032720A JP3272081A JPS57145901A JP S57145901 A JPS57145901 A JP S57145901A JP 56032720 A JP56032720 A JP 56032720A JP 3272081 A JP3272081 A JP 3272081A JP S57145901 A JPS57145901 A JP S57145901A
Authority
JP
Japan
Prior art keywords
silver
contact point
electric contact
carbon particles
molding
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
JP56032720A
Other languages
Japanese (ja)
Inventor
Takao Takasaki
Tomio Taniguchi
Hajime Yoshida
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.)
Omron Corp
Original Assignee
Tateisi Electronics Co
Omron Tateisi Electronics Co
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 Tateisi Electronics Co, Omron Tateisi Electronics Co filed Critical Tateisi Electronics Co
Priority to JP56032720A priority Critical patent/JPS57145901A/en
Publication of JPS57145901A publication Critical patent/JPS57145901A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/18—Non-metallic particles coated with metal

Abstract

PURPOSE:To produce an electric contact point having uniform structure and high contact stability at a low cost by pressure-molding carbon powder particles having coatings of silver or silver alloys then sintering the same. CONSTITUTION:The powder consisting of silver-carbon particles wherein the entire surface of carbon particles of about 10mu diameters is coated with silver layers of about 2.5mu thickness is pressure-molded to a circular cylindrical shape, thence the molding is sintered by heating at about 800 deg.C in gaseous N2 flow, and further this sintered body is sized, whereby an electric contact point is produced. The internal structure of the electric contact point obtd. in this way is the uniform structure free from segregation wherein the carbon particles are dispersed independently and uniformly in the matrix of silver and therefore, the occurrence of local consumption is obviated and the contact stability is good.
JP56032720A 1981-03-06 1981-03-06 Production of electric contact point Pending JPS57145901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56032720A JPS57145901A (en) 1981-03-06 1981-03-06 Production of electric contact point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56032720A JPS57145901A (en) 1981-03-06 1981-03-06 Production of electric contact point

Publications (1)

Publication Number Publication Date
JPS57145901A true JPS57145901A (en) 1982-09-09

Family

ID=12366671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56032720A Pending JPS57145901A (en) 1981-03-06 1981-03-06 Production of electric contact point

Country Status (1)

Country Link
JP (1) JPS57145901A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60182605A (en) * 1984-02-29 1985-09-18 日本メクトロン株式会社 Light weight conductive material
JPS60182606A (en) * 1984-02-29 1985-09-18 日本メクトロン株式会社 Conductor
JP2009504907A (en) * 2005-08-12 2009-02-05 ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト Silver-carbon based material and method for producing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60182605A (en) * 1984-02-29 1985-09-18 日本メクトロン株式会社 Light weight conductive material
JPS60182606A (en) * 1984-02-29 1985-09-18 日本メクトロン株式会社 Conductor
JP2009504907A (en) * 2005-08-12 2009-02-05 ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト Silver-carbon based material and method for producing the same

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