JPS6417344A - Contact for vacuum valve and its manufacture - Google Patents

Contact for vacuum valve and its manufacture

Info

Publication number
JPS6417344A
JPS6417344A JP17261887A JP17261887A JPS6417344A JP S6417344 A JPS6417344 A JP S6417344A JP 17261887 A JP17261887 A JP 17261887A JP 17261887 A JP17261887 A JP 17261887A JP S6417344 A JPS6417344 A JP S6417344A
Authority
JP
Japan
Prior art keywords
contact
coating layer
contact substrate
metal coating
substrate
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
JP17261887A
Other languages
Japanese (ja)
Inventor
Isao Okutomi
Hajime Fujita
Mitsutaka Honma
Masanori Ishimatsu
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP17261887A priority Critical patent/JPS6417344A/en
Publication of JPS6417344A publication Critical patent/JPS6417344A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

PURPOSE:To improve the contact reliability by diffusing part of the coating layer of the specific metal in a contact substrate and setting the thickness of the metal coating layer existing on the contact substrate to 5mum or less. CONSTITUTION:A contact is provided with a contact substrate 10 with the preset shape end a metal coating layer 11 made of one kind selected among Cu, Ag, Mi, Sn, and In and coated at least on the contact face of the contact substrate 10. Part of the metal coating layer 11 is diffused in the contact substrate 10, and the thickness of the metal coating layer Xb existing on the contact substrate 10 is set to 5mum or less. The metal coating layer 11 is not merely overlapped on the contact substrate 10, the metal coating layer 11 is diffused into the contact substrate to certain thickness on the boundary face between the coating material and the contact substrate 10. A contact for vacuum valve with small contact resistance, small variation of the contact resistance, and high reliability and capable of maintaining the small deposition removing force is thereby realized.
JP17261887A 1987-07-10 1987-07-10 Contact for vacuum valve and its manufacture Pending JPS6417344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17261887A JPS6417344A (en) 1987-07-10 1987-07-10 Contact for vacuum valve and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17261887A JPS6417344A (en) 1987-07-10 1987-07-10 Contact for vacuum valve and its manufacture

Publications (1)

Publication Number Publication Date
JPS6417344A true JPS6417344A (en) 1989-01-20

Family

ID=15945214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17261887A Pending JPS6417344A (en) 1987-07-10 1987-07-10 Contact for vacuum valve and its manufacture

Country Status (1)

Country Link
JP (1) JPS6417344A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343663A2 (en) * 1988-05-27 1989-11-29 Kabushiki Kaisha Toshiba Vacuum interrupter contacts and process for producing the same
US5534737A (en) * 1994-12-21 1996-07-09 Nishimura; Masayuki Composite motor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547176A (en) * 1977-06-17 1979-01-19 Tokyo Shibaura Electric Co Method of manufacturing vacuum circuit breaker
JPS5618326A (en) * 1979-07-24 1981-02-21 Hazemeijer Bv Method of improveing switching contact
JPS56156769A (en) * 1980-05-07 1981-12-03 Nippon Mining Co Ltd Contact material
JPS6215716A (en) * 1985-07-12 1987-01-24 株式会社日立製作所 Contact for vacuum breaker electrode

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547176A (en) * 1977-06-17 1979-01-19 Tokyo Shibaura Electric Co Method of manufacturing vacuum circuit breaker
JPS5618326A (en) * 1979-07-24 1981-02-21 Hazemeijer Bv Method of improveing switching contact
JPS56156769A (en) * 1980-05-07 1981-12-03 Nippon Mining Co Ltd Contact material
JPS6215716A (en) * 1985-07-12 1987-01-24 株式会社日立製作所 Contact for vacuum breaker electrode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343663A2 (en) * 1988-05-27 1989-11-29 Kabushiki Kaisha Toshiba Vacuum interrupter contacts and process for producing the same
US5534737A (en) * 1994-12-21 1996-07-09 Nishimura; Masayuki Composite motor

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