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EP0369282A3 - Sintered contact material in low-tension switchgear, particularly for contactors - Google Patents

Sintered contact material in low-tension switchgear, particularly for contactors Download PDF

Info

Publication number
EP0369282A3
EP0369282A3 EP19890120514 EP89120514A EP0369282A3 EP 0369282 A3 EP0369282 A3 EP 0369282A3 EP 19890120514 EP19890120514 EP 19890120514 EP 89120514 A EP89120514 A EP 89120514A EP 0369282 A3 EP0369282 A3 EP 0369282A3
Authority
EP
European Patent Office
Prior art keywords
contactors
contact material
low
powder
tension switchgear
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
EP19890120514
Other languages
German (de)
French (fr)
Other versions
EP0369282B1 (en
EP0369282A2 (en
Inventor
Wolfgang Haufe
Bernhard Rothkegel
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0369282A2 publication Critical patent/EP0369282A2/en
Publication of EP0369282A3 publication Critical patent/EP0369282A3/en
Application granted granted Critical
Publication of EP0369282B1 publication Critical patent/EP0369282B1/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
    • 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
    • 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
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/048—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by powder-metallurgical processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Contacts (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Switches (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

Aus einem inneroxidierten Legierungspulver hergestellte Sin­ terkontaktwerkstoffe der Konstitution AgSnO₂Bi₂O₃CuO sind be­ kannt. Gemäß der Erfindung enthält der Werkstoff als weiteres Oxid wenigstens Zirkonoxid und gegebenenfalls zusätzlich Wis­ mutoxid in Massenanteilen von vorzugsweise zwischen 0,1 und 5 % vorhanden. Zur Herstellung dieser Werkstoffe wird Zirkonoxid­ pulver und gegebenenfalls zusätzlich Wismutoxidpulver dem inneroxidierten Legierungspulver aus AgSnO₂Bi₂O₃CuO zuge­ mischt. Mit einem solchen Kontaktwerkstoff wird insbesondere das Übertemperaturverhalten in Motorschützen verbessert. Sin made from an internally oxidized alloy powder Contact materials of the constitution AgSnO₂Bi₂O₃CuO are be knows. According to the invention, the material further contains Oxide at least zirconium oxide and optionally additional wis Mutoxide in mass fractions of preferably between 0.1 and 5% available. Zirconium oxide is used to manufacture these materials powder and optionally also bismuth oxide powder internally oxidized alloy powder from AgSnO₂Bi₂O₃CuO mixes. With such a contact material, in particular improves the overtemperature behavior in motor contactors.

EP89120514A 1988-11-17 1989-11-06 Sintered contact material in low-tension switchgear, particularly for contactors Expired - Lifetime EP0369282B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3838951 1988-11-17
DE3838951 1988-11-17

Publications (3)

Publication Number Publication Date
EP0369282A2 EP0369282A2 (en) 1990-05-23
EP0369282A3 true EP0369282A3 (en) 1991-03-13
EP0369282B1 EP0369282B1 (en) 1995-06-14

Family

ID=6367375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120514A Expired - Lifetime EP0369282B1 (en) 1988-11-17 1989-11-06 Sintered contact material in low-tension switchgear, particularly for contactors

Country Status (5)

Country Link
US (1) US4948424A (en)
EP (1) EP0369282B1 (en)
JP (1) JPH02185938A (en)
BR (1) BR8905829A (en)
DE (1) DE58909295D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5286441A (en) * 1989-12-26 1994-02-15 Akira Shibata Silver-metal oxide composite material and process for producing the same
DE4117311A1 (en) * 1991-05-27 1992-12-03 Siemens Ag CONTACT MATERIAL ON A SILVER BASE FOR USE IN SWITCHGEAR DEVICES IN ENERGY TECHNOLOGY
DE4201940A1 (en) * 1992-01-24 1993-07-29 Siemens Ag SINTER COMPOSITE FOR ELECTRICAL CONTACTS IN SWITCHGEAR OF ENERGY TECHNOLOGY
DE10017282C2 (en) * 2000-04-06 2002-02-14 Omg Ag & Co Kg Process for the production of composite powder based on siler tin oxide and its use for the production of contact materials
US9928971B2 (en) 2014-04-16 2018-03-27 Abb Schweiz Ag Electrical contact tip for switching applications and an electrical switching device
CN104128601B (en) * 2014-08-18 2016-09-07 黑龙江中勋机电科技发展有限公司 Prealloy method produces copper-based electric contact material
US10290434B2 (en) 2016-09-23 2019-05-14 Honeywell International Inc. Silver metal oxide alloy and method of making

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074507A2 (en) * 1981-09-04 1983-03-23 Degussa Aktiengesellschaft Material for electric contacts and method for its manufacture
EP0164664A2 (en) * 1984-06-12 1985-12-18 Siemens Aktiengesellschaft Sintered contact material for low-tension energy switchgear
EP0170812A2 (en) * 1984-06-12 1986-02-12 Siemens Aktiengesellschaft Method for the manufacture of sintered contact material
EP0182386A2 (en) * 1983-02-10 1986-05-28 Siemens Aktiengesellschaft Method of producing contact parts

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752417B2 (en) * 1973-05-04 1982-11-08
US4141727A (en) * 1976-12-03 1979-02-27 Matsushita Electric Industrial Co., Ltd. Electrical contact material and method of making the same
US4294616A (en) * 1979-01-02 1981-10-13 Gte Products Corporation Electrical contacts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074507A2 (en) * 1981-09-04 1983-03-23 Degussa Aktiengesellschaft Material for electric contacts and method for its manufacture
EP0182386A2 (en) * 1983-02-10 1986-05-28 Siemens Aktiengesellschaft Method of producing contact parts
EP0164664A2 (en) * 1984-06-12 1985-12-18 Siemens Aktiengesellschaft Sintered contact material for low-tension energy switchgear
EP0170812A2 (en) * 1984-06-12 1986-02-12 Siemens Aktiengesellschaft Method for the manufacture of sintered contact material

Also Published As

Publication number Publication date
EP0369282B1 (en) 1995-06-14
EP0369282A2 (en) 1990-05-23
DE58909295D1 (en) 1995-07-20
BR8905829A (en) 1990-06-12
JPH02185938A (en) 1990-07-20
US4948424A (en) 1990-08-14

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