GB1338332A - Manufacture of electrical contact members - Google Patents

Manufacture of electrical contact members

Info

Publication number
GB1338332A
GB1338332A GB310972A GB310972A GB1338332A GB 1338332 A GB1338332 A GB 1338332A GB 310972 A GB310972 A GB 310972A GB 310972 A GB310972 A GB 310972A GB 1338332 A GB1338332 A GB 1338332A
Authority
GB
United Kingdom
Prior art keywords
copper
silver
manufacture
electrical contact
powder
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
GB310972A
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 GB1338332A publication Critical patent/GB1338332A/en
Expired 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
    • H01H1/0231—Composite material having a noble metal as the basic material provided with a solder layer
    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Contacts (AREA)

Abstract

1338332 Powder metallurgy SIEMENS AG 21 Jan 1972 [22 Jan 1971] 3109/72 Heading C7D [Also in Division H1] A process for the manufacture of a double layer sintered electrical contact member, which comprises superimposing a first layer of powder 1 comprising silver and a metal oxide, and a second layer of powder 2 comprising copper or a copper alloy, compressing the superimposed layers, and sintering the compressed layers in an oxygen-free atmosphere at a temperature below the eutectic temperature of silver and copper or of silver and the alloy of copper. The metal oxide used may be CdO, ZNO, SNO 2 , TiO 2 , Al 2 O 3 , NiO or CuO and the copper alloy may have between 0À1 and 6 per cent by weight of Ag. Sintering is effected at a temperature of from 750 to 770‹C. in a nitrogen atmosphere.
GB310972A 1971-01-22 1972-01-21 Manufacture of electrical contact members Expired GB1338332A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712102996 DE2102996B2 (en) 1971-01-22 1971-01-22 Process for producing a two-layer sintered contact piece on the basis of silver and copper

Publications (1)

Publication Number Publication Date
GB1338332A true GB1338332A (en) 1973-11-21

Family

ID=5796649

Family Applications (1)

Application Number Title Priority Date Filing Date
GB310972A Expired GB1338332A (en) 1971-01-22 1972-01-21 Manufacture of electrical contact members

Country Status (11)

Country Link
JP (1) JPS5415845B1 (en)
AT (1) AT306840B (en)
BR (1) BR7200361D0 (en)
CA (1) CA953950A (en)
CH (1) CH560457A5 (en)
DE (1) DE2102996B2 (en)
ES (1) ES398298A1 (en)
FR (1) FR2122873A5 (en)
GB (1) GB1338332A (en)
IT (1) IT946728B (en)
SE (1) SE365732B (en)

Families Citing this family (7)

* 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
US4138251A (en) * 1977-05-31 1979-02-06 Texas Instruments Incorporated Electrical contact material
US4246321A (en) * 1978-12-20 1981-01-20 Chugai Denki Kogya Kabushiki-Kaisha Ag-SnO Alloy composite electrical contact
DE3212005C2 (en) * 1982-03-31 1986-05-28 Siemens AG, 1000 Berlin und 8000 München Process for the production of a two-layer sintered contact piece on the basis of silver and copper
US4472211A (en) * 1982-05-20 1984-09-18 Chugai Denki Kogyo Kobushiki Kaisha Method of internally oxidizing Ag-Sn alloy contact material
FR2527637B1 (en) * 1982-05-28 1986-10-24 Chugai Electric Ind Co Ltd MATERIALS FOR ELECTRICAL CONTACTS OF AG-SN ALLOY WITH INTERNAL OXIDATION AND PREPARATION METHOD THEREOF
DE19537657A1 (en) * 1995-10-10 1997-04-17 Abb Patent Gmbh Method and device for producing a contact piece

Also Published As

Publication number Publication date
ES398298A1 (en) 1974-08-16
DE2102996B2 (en) 1975-09-04
IT946728B (en) 1973-05-21
AT306840B (en) 1973-04-25
BR7200361D0 (en) 1973-05-17
FR2122873A5 (en) 1972-09-01
SE365732B (en) 1974-04-01
JPS5415845B1 (en) 1979-06-18
CH560457A5 (en) 1975-03-27
CA953950A (en) 1974-09-03
DE2102996A1 (en) 1972-08-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee