ES8708252A1 - Electrical contact materials, and methods of making the same. - Google Patents

Electrical contact materials, and methods of making the same.

Info

Publication number
ES8708252A1
ES8708252A1 ES556445A ES556445A ES8708252A1 ES 8708252 A1 ES8708252 A1 ES 8708252A1 ES 556445 A ES556445 A ES 556445A ES 556445 A ES556445 A ES 556445A ES 8708252 A1 ES8708252 A1 ES 8708252A1
Authority
ES
Spain
Prior art keywords
contact materials
making
methods
same
electrical contact
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.)
Expired
Application number
ES556445A
Other languages
Spanish (es)
Other versions
ES556445A0 (en
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
Priority claimed from US06/771,341 external-priority patent/US4647322A/en
Priority claimed from US06/779,066 external-priority patent/US4636270A/en
Application filed by Chugai Electric Industrial Co Ltd filed Critical Chugai Electric Industrial Co Ltd
Publication of ES8708252A1 publication Critical patent/ES8708252A1/en
Publication of ES556445A0 publication Critical patent/ES556445A0/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1078—Alloys containing non-metals by internal oxidation of material in solid state
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/06—Alloys based on silver
    • C22C5/10—Alloys based on silver with cadmium as the next major constituent
    • 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
    • H01H1/0231—Composite material having a noble metal as the basic material provided with a solder layer

Abstract

Electrical-contact materials made from internally oxidized Ag alloys of the Ag-SnO system. The alloys contain 0.5 - 12 wt % of Sn, 0.5 - 15 wt % of In or 0.01 - 1.5wt % of Bi, balance Ag. As it was found that, after the internal oxidation treatment, the dispersion of metal oxides was not uniform and segregation occurred, a new method of manufacturing these materials was used. As contact surface the section that was most remote from the face where the oxidation started was used. The alloy can be manufactured with a thickness slightly larger than twice the desired thickness of the final product, fixedly sandwiched between thin pure silver layers, internally oxidized and cut horizontally in two the depletion zone, containing little or no oxides, disappears by this cutting operation.
ES556445A 1985-08-30 1986-06-23 Electrical contact materials, and methods of making the same. Expired ES8708252A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/771,341 US4647322A (en) 1984-12-11 1985-08-30 Internal oxidized Ag-SnO system alloy electrical contact materials
US06/779,066 US4636270A (en) 1985-09-23 1985-09-23 Internal oxidized Ag-Sn system alloy contact materials

Publications (2)

Publication Number Publication Date
ES8708252A1 true ES8708252A1 (en) 1987-11-01
ES556445A0 ES556445A0 (en) 1987-11-01

Family

ID=27118444

Family Applications (1)

Application Number Title Priority Date Filing Date
ES556445A Expired ES8708252A1 (en) 1985-08-30 1986-06-23 Electrical contact materials, and methods of making the same.

Country Status (10)

Country Link
EP (1) EP0219924A1 (en)
CN (1) CN1014329B (en)
AU (1) AU581338B2 (en)
BR (1) BR8602289A (en)
CA (1) CA1296883C (en)
DK (1) DK414686A (en)
ES (1) ES8708252A1 (en)
IN (1) IN165226B (en)
NO (1) NO861703L (en)
PT (1) PT82516B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2012293A6 (en) * 1988-03-26 1990-03-01 Doduco Gmbh Dr Eugen Durrwacht Semifinished product for electrical contacts, made of a composite material based on silver and tin oxide, and powder metallurgical process for producing it.
US5078810A (en) * 1990-02-08 1992-01-07 Seiichi Tanaka Method of making Ag-SnO contact materials by high pressure internal oxidation
JPH04311543A (en) * 1991-04-09 1992-11-04 Chugai Electric Ind Co Ltd Ag-sno-ino electrical contact material and production thereof
CN1069559C (en) * 1999-05-26 2001-08-15 沈阳市铸造材料研究所 Modified water glass for casting and its preparing process
US6924044B2 (en) * 2001-08-14 2005-08-02 Snag, Llc Tin-silver coatings
CN100444294C (en) * 2005-09-01 2008-12-17 中南大学 Method for manufacturing sliver oxidized tin contactor materials
CN107064140A (en) * 2017-03-17 2017-08-18 浙江工业大学 Ag Sn In alloy differential pressure internal oxidition method of testings
CN107988505B (en) * 2017-11-29 2019-09-27 温州宏丰电工合金股份有限公司 Low contact resistance, high-performance silver silver-tin oxide electric contact material and preparation method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258829A (en) * 1963-07-12 1966-07-05 Talon Inc Method of producing silver-cadmium oxide electrical contact elements
DE1803502C3 (en) * 1968-10-17 1973-01-04 Inovan-Stroebe Kg, 7534 Birkenfeld Silver metal oxide material
GB1507854A (en) * 1974-04-01 1978-04-19 Mallory & Co Inc P R Electric contact materials
US4472211A (en) * 1982-05-20 1984-09-18 Chugai Denki Kogyo Kobushiki Kaisha Method of internally oxidizing Ag-Sn alloy contact material
US4457787A (en) * 1982-09-21 1984-07-03 Chugai Denki Kogyo Kabushiki-Kaisha Internal oxidation method of Ag alloys
JPS61114417A (en) * 1984-11-08 1986-06-02 中外電気工業株式会社 Ag-sno based composite electric contact material and making thereof

Also Published As

Publication number Publication date
DK414686D0 (en) 1986-08-29
PT82516A (en) 1986-06-01
BR8602289A (en) 1987-03-17
CN86103279A (en) 1987-02-25
NO861703L (en) 1987-03-02
EP0219924A1 (en) 1987-04-29
DK414686A (en) 1987-03-01
CA1296883C (en) 1992-03-10
ES556445A0 (en) 1987-11-01
AU6188886A (en) 1987-03-05
CN1014329B (en) 1991-10-16
AU581338B2 (en) 1989-02-16
PT82516B (en) 1992-07-31
IN165226B (en) 1989-09-02

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970303