EP0437917A3 - Internal-oxidation method for production of electrical contact materials - Google Patents

Internal-oxidation method for production of electrical contact materials Download PDF

Info

Publication number
EP0437917A3
EP0437917A3 EP19900308996 EP90308996A EP0437917A3 EP 0437917 A3 EP0437917 A3 EP 0437917A3 EP 19900308996 EP19900308996 EP 19900308996 EP 90308996 A EP90308996 A EP 90308996A EP 0437917 A3 EP0437917 A3 EP 0437917A3
Authority
EP
European Patent Office
Prior art keywords
internal
production
electrical contact
oxidation method
contact materials
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.)
Granted
Application number
EP19900308996
Other versions
EP0437917B1 (en
EP0437917A2 (en
Inventor
Masaharu C/O Chugai Denki Kogyo K.K. Yida
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.)
Chugai Electric Industrial Co Ltd
Original Assignee
Chugai Electric Industrial 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 Chugai Electric Industrial Co Ltd filed Critical Chugai Electric Industrial Co Ltd
Publication of EP0437917A2 publication Critical patent/EP0437917A2/en
Publication of EP0437917A3 publication Critical patent/EP0437917A3/en
Application granted granted Critical
Publication of EP0437917B1 publication Critical patent/EP0437917B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0021—Matrix based on noble metals, Cu or alloys thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material
    • H01H1/0237—Composite material having a noble metal as the basic material and containing oxides
    • H01H1/02372—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te
    • H01H1/02376—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te containing as major component SnO2
EP90308996A 1990-01-19 1990-08-16 Internal-oxidation method for production of electrical contact materials Expired - Lifetime EP0437917B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9909/90 1990-01-19
JP2009909A JPH03215635A (en) 1990-01-19 1990-01-19 Internal oxidation of electrical contact material and electrical contact material

Publications (3)

Publication Number Publication Date
EP0437917A2 EP0437917A2 (en) 1991-07-24
EP0437917A3 true EP0437917A3 (en) 1992-04-22
EP0437917B1 EP0437917B1 (en) 1994-10-19

Family

ID=11733239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90308996A Expired - Lifetime EP0437917B1 (en) 1990-01-19 1990-08-16 Internal-oxidation method for production of electrical contact materials

Country Status (5)

Country Link
EP (1) EP0437917B1 (en)
JP (1) JPH03215635A (en)
KR (1) KR910014967A (en)
CN (1) CN1053509A (en)
DE (1) DE69013485T2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103714981B (en) * 2013-12-20 2015-08-05 宁波赛特勒电子有限公司 A kind of relay
CN108220650A (en) * 2017-12-27 2018-06-29 昆明贵金属研究所 A kind of multicomponent oxide enhancing silver-based electric contact material and preparation method thereof
CN110983096A (en) * 2019-12-07 2020-04-10 福达合金材料股份有限公司 Method for preparing silver matrix oxide electric contact material by internal oxidation method capable of improving fusion welding resistance

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB611813A (en) * 1945-07-28 1948-11-04 Mallory Metallurg Prod Ltd Improvements in and relating to the production of metal-metal oxide compositions or alloys
FR2084338A5 (en) * 1970-03-09 1971-12-17 Duerrwaechter E Dr Doduco
US3933485A (en) * 1973-07-20 1976-01-20 Chugai Denki Kogyo Kabushiki-Kaisha Electrical contact material
US4472211A (en) * 1982-05-20 1984-09-18 Chugai Denki Kogyo Kobushiki Kaisha Method of internally oxidizing Ag-Sn alloy contact material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121795A (en) * 1975-04-17 1976-10-25 Nippon Tungsten Co Ltd Ag-tin oxide-system electric contact material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB611813A (en) * 1945-07-28 1948-11-04 Mallory Metallurg Prod Ltd Improvements in and relating to the production of metal-metal oxide compositions or alloys
FR2084338A5 (en) * 1970-03-09 1971-12-17 Duerrwaechter E Dr Doduco
US3933485A (en) * 1973-07-20 1976-01-20 Chugai Denki Kogyo Kabushiki-Kaisha Electrical contact material
US4472211A (en) * 1982-05-20 1984-09-18 Chugai Denki Kogyo Kobushiki Kaisha Method of internally oxidizing Ag-Sn alloy contact material

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
& JP-A-51 121 795 (NIPPON TUNGSTEN K. K.) 26 October 1976 *
WORLD PATENTS INDEX Week 7650, Derwent Publications Ltd., London, GB; AN 76-93023X (50) *
Z. METALLKUNDE vol. 64, no. 4, 1973, pages 286 - 295; & GRABKE, H. J.: 'Die innere Oxidation von Silberlegierungen bei hohen Drücken und in atomarem Sauerstoff' *

Also Published As

Publication number Publication date
DE69013485T2 (en) 1995-05-04
CN1053509A (en) 1991-07-31
EP0437917B1 (en) 1994-10-19
EP0437917A2 (en) 1991-07-24
DE69013485D1 (en) 1994-11-24
JPH03215635A (en) 1991-09-20
KR910014967A (en) 1991-08-31

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