EP0369283A3 - Sintered contact material for low-tension switchgear, particularly for contactors - Google Patents

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

Info

Publication number
EP0369283A3
EP0369283A3 EP19890120515 EP89120515A EP0369283A3 EP 0369283 A3 EP0369283 A3 EP 0369283A3 EP 19890120515 EP19890120515 EP 19890120515 EP 89120515 A EP89120515 A EP 89120515A EP 0369283 A3 EP0369283 A3 EP 0369283A3
Authority
EP
European Patent Office
Prior art keywords
contact material
contactors
low
tension switchgear
sintered 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.)
Granted
Application number
EP19890120515
Other languages
German (de)
French (fr)
Other versions
EP0369283A2 (en
EP0369283B1 (en
Inventor
Wolfgang Haufe
Ralf-Dieter Dipl.-Ing. Krause
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 EP0369283A2 publication Critical patent/EP0369283A2/en
Publication of EP0369283A3 publication Critical patent/EP0369283A3/en
Application granted granted Critical
Publication of EP0369283B1 publication Critical patent/EP0369283B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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 Alloys Or Alloy Compounds (AREA)
  • Manufacture Of Switches (AREA)

Abstract

Aus einem inneroxidierten Legierungspulver hergestellte Sin­ terkontaktwerkstoffe der Konstitution AgSnO₂Bi₂O₃CuO sind be­ kannt. Gemäß der Erfindung ist zusätzlich wenigstens Wis­ mutzirkonat und/oder Wismuttitanat in Massenanteilen von vorzugsweise zwischen 0,1 und 5 % vorhanden. Zur Herstellung dieser Werkstoffe wird Wismutzirkonat und/oder Wismuttitanat als separates Pulver dem inneroxidierten Legierungspulver aus AgSnO₂Bi₂O₃CuO zugemischt. Mit einem solchen Kontaktwerkstoff wird insbesondere das Übertemperaturverhalten in Motorschützen wesentlich verbessert. Sin made from an internally oxidized alloy powder Contact materials of the constitution AgSnO₂Bi₂O₃CuO are be knows. According to the invention, at least Wis Mutzirkonat and / or bismuth titanate in mass fractions of preferably between 0.1 and 5%. For the production these materials are bismuth zirconate and / or bismuth titanate as a separate powder from the inner oxidized alloy powder AgSnO₂Bi₂O₃CuO admixed. With such a contact material is especially the overtemperature behavior in motor contactors significantly improved.

EP89120515A 1988-11-17 1989-11-06 Sintered contact material for low-tension switchgear, particularly for contactors Expired - Lifetime EP0369283B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3838950 1988-11-17
DE3838950 1988-11-17

Publications (3)

Publication Number Publication Date
EP0369283A2 EP0369283A2 (en) 1990-05-23
EP0369283A3 true EP0369283A3 (en) 1991-03-13
EP0369283B1 EP0369283B1 (en) 1994-09-14

Family

ID=6367374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120515A Expired - Lifetime EP0369283B1 (en) 1988-11-17 1989-11-06 Sintered contact material for low-tension switchgear, particularly for contactors

Country Status (5)

Country Link
US (1) US4980125A (en)
EP (1) EP0369283B1 (en)
JP (1) JP2810162B2 (en)
BR (1) BR8905828A (en)
DE (1) DE58908359D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5610347A (en) * 1992-06-10 1997-03-11 Doduco Gmbh & Co. Dr. Eugen Durrwachter Material for electric contacts taking silver-tin oxide or silver-zinc oxide as basis
ATE139864T1 (en) * 1992-09-16 1996-07-15 Duerrwaechter E Dr Doduco MATERIAL FOR ELECTRICAL CONTACTS BASED ON SILVER-TIN OXIDE OR SILVER-ZINC OXIDE AND METHOD FOR THE PRODUCTION THEREOF
DE19503182C1 (en) * 1995-02-01 1996-05-15 Degussa Sintered material used as electrical contacts for switching amperage rating
US20090202855A1 (en) * 2008-01-09 2009-08-13 Saxton David M Porous sliding bearing and method of construction thereof
US8320089B1 (en) 2009-04-16 2012-11-27 Musco Corporation Apparatus, method, and system for integrating ground fault circuit interrupters in equipment-grounded high voltage systems
CN108772053B (en) * 2018-06-29 2020-12-15 辽宁石油化工大学 Bismuth titanate/bismuth oxide photocatalyst and preparation method and application thereof
CN113502414B (en) * 2021-06-10 2022-01-07 暨南大学 High-thermal-conductivity aviation aluminum alloy and application thereof in preparation of ultra-large-area LED light source radiator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232627A1 (en) * 1981-09-24 1983-04-07 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim Material for electrical contacts
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
US4141727A (en) * 1976-12-03 1979-02-27 Matsushita Electric Industrial Co., Ltd. Electrical contact material and method of making the same
DE3146972A1 (en) * 1981-11-26 1983-06-01 Siemens AG, 1000 Berlin und 8000 München METHOD FOR PRODUCING MOLDED PARTS FROM CADMIUM-FREE SILVER METAL OXIDE COMPOSITIONS FOR ELECTRICAL CONTACTS
DE3466122D1 (en) * 1984-01-30 1987-10-15 Siemens Ag Contact material and production of electric contacts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232627A1 (en) * 1981-09-24 1983-04-07 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim Material for electrical contacts
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
JP2810162B2 (en) 1998-10-15
BR8905828A (en) 1990-06-12
US4980125A (en) 1990-12-25
EP0369283A2 (en) 1990-05-23
EP0369283B1 (en) 1994-09-14
DE58908359D1 (en) 1994-10-20
JPH02185937A (en) 1990-07-20

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