EP0508055A1 - Auf Silberoxid basierendes elektrisches Kontaktmaterial - Google Patents

Auf Silberoxid basierendes elektrisches Kontaktmaterial Download PDF

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Publication number
EP0508055A1
EP0508055A1 EP92101915A EP92101915A EP0508055A1 EP 0508055 A1 EP0508055 A1 EP 0508055A1 EP 92101915 A EP92101915 A EP 92101915A EP 92101915 A EP92101915 A EP 92101915A EP 0508055 A1 EP0508055 A1 EP 0508055A1
Authority
EP
European Patent Office
Prior art keywords
silver
oxide based
resistance
electric contacts
based material
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
EP92101915A
Other languages
English (en)
French (fr)
Other versions
EP0508055B1 (de
Inventor
Yuzo c/o Kabushiki Kaisha Higashi Fuji Uemura
Shigeo c/o Kabushiki Kaisha Higashi Fuji Shibuya
Manabu c/o Kabushiki Kaisha Higashi Fuji Aoki
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.)
Mitsubishi Materials Corp
Original Assignee
Mitsubishi Materials 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27169214&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0508055(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP3122024A external-priority patent/JPH0762188B2/ja
Priority claimed from JP3276790A external-priority patent/JPH0762189B2/ja
Application filed by Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Publication of EP0508055A1 publication Critical patent/EP0508055A1/de
Application granted granted Critical
Publication of EP0508055B1 publication Critical patent/EP0508055B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • H01H1/021—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
    • 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
    • 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
    • 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

Definitions

  • This invention relates to silver-oxide based materials for electric contacts for use in various electrical or electronic apparatus.
  • the object of the invention to provide silver-oxide based materials for electric contacts, which have excellent deposition resistance and consumption resistance and hence prolonged service lives.
  • the present invention provides a silver-oxide based material for electric contacts, having excellent deposition resistance and consumption resistance, the material being formed by subjecting to an internal oxidation treatment an Ag based alloy consisting essentially of:
  • a silver-oxide based material for electric contacts which is formed by subjecting an Ag based alloy consisting essentially of:
  • the present invention is based upon the above finding, and the silver-oxide based electric contact material according to the invention has the aforementioned chemical compositions.
  • Ag based alloys having chemical compositions shown in Tables 1 and 2 were smelted in an ordinary type high-frequency smelting furnance and cast under conventional ordinary casting conditions into ingots.
  • the ingots were each hot extruded into a plate having a thickness of 5mm.
  • the plate was then hot rolled, followed by being cold rolled into a sheet having a thickness of 0.6mm.
  • the sheet was cut or sliced in its longitudinal direction into a strip having a width of 2mm.
  • the strip was subjected to an internal oxidation treatment under an oxygen atmosphere at a temperature of 700°C and for a soaking time of 24 hours.
  • the internally oxidized strips were put together and compacted into a billet having a diameter of 70mm.
  • the billet was extruded into a diameter of 7mm, followed by being subjected to wire drawing into a wire having a diameter of 2mm. Finally, the wire was formed, by a header machine, into rivets having a head diameter of 4mm, a head height of 1mm, a leg diameter of 2mm, and a leg length of 2mm.
  • the obtained rivets were adapted as specimens of the silver-oxide based electric contact material according to the present invention (hereinafter referred to as "the present invention contact materials Nos. 1 - 11”) and specimens of conventional silver-oxide based electric contact materials (hereinafter referred to as "the conventional contact materials Nos. 1 - 11").
  • Rivets were formed from Ag based alloys having chemical compositions shown in Tables 3 and 4 under the same conditions as in Example 1 described above, to obtain present invention materials Nos. 14 - 29 and conventional materials Nos. 12 - 17.
  • silver-oxide based electric contact materials according to the present invention thus possess excellent deposition resistance and consumption resistance, if they are actually used in various electrical or electronic apparatus, they will greatly contribute to improving the performance of the electrical or electronic apparatus as well as to prolongation of the service lives thereof.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Contacts (AREA)
EP92101915A 1991-04-12 1992-02-05 Metalloxidmaterial auf Silberbasis für elektrische Kontakte Revoked EP0508055B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP3122024A JPH0762188B2 (ja) 1991-04-12 1991-04-12 銀−酸化物系電気接点材料
JP122024/91 1991-04-12
JP276790/91 1991-09-27
JP3276790A JPH0762189B2 (ja) 1991-09-27 1991-09-27 銀−酸化物系電気接点材料
CA002080201A CA2080201C (en) 1991-04-12 1992-10-08 Silver-oxide based electric contact material

Publications (2)

Publication Number Publication Date
EP0508055A1 true EP0508055A1 (de) 1992-10-14
EP0508055B1 EP0508055B1 (de) 1997-05-02

Family

ID=27169214

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92101915A Revoked EP0508055B1 (de) 1991-04-12 1992-02-05 Metalloxidmaterial auf Silberbasis für elektrische Kontakte

Country Status (3)

Country Link
EP (1) EP0508055B1 (de)
KR (1) KR0121724B1 (de)
DE (1) DE69219397T2 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5451272A (en) * 1991-04-12 1995-09-19 Mitsubishi Materials Corporation Silver-oxide electric contact material for use in switches for high current
EP1584696A4 (de) * 2002-08-15 2005-10-12 Tokuriki Honten Company Ltd HERSTELLUNGSVERFAHREN FÜR ELEKTRISCHES KONTAKTMATERIAL AUF Ag-OXIDBASIS UND DESSEN PRODUKT
US7189656B2 (en) 2001-06-01 2007-03-13 Tokuriki Honten Co. Ltd. Method for manufacturing ag-oxide-based electric contact material and product of the same
DE102009059690A1 (de) 2009-12-19 2011-06-22 Umicore AG & Co. KG, 63457 Oxidationsverfahren
DE102010014745A1 (de) 2010-01-15 2011-07-21 Tyco Electronics AMP GmbH, 64625 Elektrisches Kontaktelement und Verfahren zur Herstellung eines elektrischen Kontaktelements
EP2447379A1 (de) 2010-10-29 2012-05-02 Umicore Ag & Co. Kg Oxidationsverfahren
EP2644723A1 (de) 2012-03-26 2013-10-02 Umicore AG & Co. KG Verbundwerkstoff
US9028586B2 (en) 2011-12-29 2015-05-12 Umicore Oxidation method
CN111868864A (zh) * 2018-03-16 2020-10-30 田中贵金属工业株式会社 直流高压继电器和直流高压继电器用触点材料

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100464868B1 (ko) * 2003-08-22 2005-01-15 희성금속 주식회사 전기접점재료

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1342227A (fr) * 1962-09-24 1963-11-08 Comp Generale Electricite Alliage pour contacts électriques
US3933485A (en) * 1973-07-20 1976-01-20 Chugai Denki Kogyo Kabushiki-Kaisha Electrical contact material
EP0252492A2 (de) * 1986-07-08 1988-01-13 Fuji Electric Co., Ltd. Verfahren zur Herstellung eines Ag-Metalloxid-Material für elektrische Kontakte
EP0388259A1 (de) * 1989-03-10 1990-09-19 Comptoir Lyon-Alemand - Louyot Silber und Zinnmaterial zur Verwendung bei elektrischen Kontakten; daraus hergestellte elektrische Kontakte

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1342227A (fr) * 1962-09-24 1963-11-08 Comp Generale Electricite Alliage pour contacts électriques
US3933485A (en) * 1973-07-20 1976-01-20 Chugai Denki Kogyo Kabushiki-Kaisha Electrical contact material
EP0252492A2 (de) * 1986-07-08 1988-01-13 Fuji Electric Co., Ltd. Verfahren zur Herstellung eines Ag-Metalloxid-Material für elektrische Kontakte
EP0388259A1 (de) * 1989-03-10 1990-09-19 Comptoir Lyon-Alemand - Louyot Silber und Zinnmaterial zur Verwendung bei elektrischen Kontakten; daraus hergestellte elektrische Kontakte

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ELECTRICAL CONTACTS-1989, PROCEEDINGS OF THE 35TH MEETION OF THE IEEE HOLM CONFERENCE ON ELECTRICAL CONTACTS 20 September 1989, CHICAGO, US pages 69 - 78; LAMBERT ET AL: 'A NEW DOPED SILVER TIN OXIDE MATERIAL WITH IMPROVED ELECTRICAL BEHAVIOUR' *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5451272A (en) * 1991-04-12 1995-09-19 Mitsubishi Materials Corporation Silver-oxide electric contact material for use in switches for high current
US7189656B2 (en) 2001-06-01 2007-03-13 Tokuriki Honten Co. Ltd. Method for manufacturing ag-oxide-based electric contact material and product of the same
EP1584696A4 (de) * 2002-08-15 2005-10-12 Tokuriki Honten Company Ltd HERSTELLUNGSVERFAHREN FÜR ELEKTRISCHES KONTAKTMATERIAL AUF Ag-OXIDBASIS UND DESSEN PRODUKT
EP1584696A1 (de) * 2002-08-15 2005-10-12 Tokuriki Honten Company Limited HERSTELLUNGSVERFAHREN FÜR ELEKTRISCHES KONTAKTMATERIAL AUF Ag-OXIDBASIS UND DESSEN PRODUKT
DE102009059690A1 (de) 2009-12-19 2011-06-22 Umicore AG & Co. KG, 63457 Oxidationsverfahren
DE102010014745A1 (de) 2010-01-15 2011-07-21 Tyco Electronics AMP GmbH, 64625 Elektrisches Kontaktelement und Verfahren zur Herstellung eines elektrischen Kontaktelements
WO2011086167A1 (de) 2010-01-15 2011-07-21 Umicore Ag & Co. Kg Elektrisches kontaktelement und verfahren zur herstellung eines elektrischen kontaktelements
US8749330B2 (en) 2010-01-15 2014-06-10 Umicore Ag & Co. Kg Electric contact element and method for producing an electric contact element
EP2634273A1 (de) 2010-10-29 2013-09-04 Umicore AG & Co. KG Oxidationsverfahren
EP2447379A1 (de) 2010-10-29 2012-05-02 Umicore Ag & Co. Kg Oxidationsverfahren
US9028586B2 (en) 2011-12-29 2015-05-12 Umicore Oxidation method
EP2644723A1 (de) 2012-03-26 2013-10-02 Umicore AG & Co. KG Verbundwerkstoff
WO2013144112A1 (de) 2012-03-26 2013-10-03 Umicore Ag & Co. Kg Kontaktwerkstoff
US9928931B2 (en) 2012-03-26 2018-03-27 Umicore Technical Materials Ag & Co. Kg Contact material
CN111868864A (zh) * 2018-03-16 2020-10-30 田中贵金属工业株式会社 直流高压继电器和直流高压继电器用触点材料
CN111868864B (zh) * 2018-03-16 2023-02-28 田中贵金属工业株式会社 直流高压继电器和直流高压继电器用触点材料

Also Published As

Publication number Publication date
DE69219397T2 (de) 1997-11-06
DE69219397D1 (de) 1997-06-05
KR0121724B1 (ko) 1997-12-04
KR930006167A (ko) 1993-04-20
EP0508055B1 (de) 1997-05-02

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