GB532447A - Improvements in or relating to electrical contact members - Google Patents

Improvements in or relating to electrical contact members

Info

Publication number
GB532447A
GB532447A GB25830/39A GB2583039A GB532447A GB 532447 A GB532447 A GB 532447A GB 25830/39 A GB25830/39 A GB 25830/39A GB 2583039 A GB2583039 A GB 2583039A GB 532447 A GB532447 A GB 532447A
Authority
GB
United Kingdom
Prior art keywords
refractory metal
copper alloy
sept
alloys
cobalt
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
GB25830/39A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB532447A publication Critical patent/GB532447A/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
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/045—Alloys based on refractory metals
    • 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
    • H01H1/025—Composite material having copper as the basic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/929—Electrical contact feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/939—Molten or fused coating

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)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Powder Metallurgy (AREA)

Abstract

532,447. Alloys. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Sept. 14, 1939, No. 25830. Convention date, Sept. 14, 1938. [Classes 72 and 82 (i)] Alloys for electric contacts comprise refractory metal powders, such as tungsten, molybdenum, or tantalum, bonded with a copper alloy containing 0.5-5 per cent. each of cobalt and iron. The refractory metal may form 50-90 per cent. of the product, and the ratio of cobalt to iron may be between 0.5 and 1.25 to 1. The refractory metal base may be made by compressing the powders or by using an organic binder such as shellac and alcohol; the porous product is then impregnated with the copper alloy, for example, by heating to between the melting points of the copper alloy and the refractory metal. Heat-treatment may comprise quenching from 750-1075‹C. followed by ageing at 450- 600‹C. Specification 511,461 is referred to.
GB25830/39A 1938-09-14 1939-09-14 Improvements in or relating to electrical contact members Expired GB532447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US229866A US2200088A (en) 1938-09-14 1938-09-14 Electrical contact member

Publications (1)

Publication Number Publication Date
GB532447A true GB532447A (en) 1941-01-23

Family

ID=22862974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25830/39A Expired GB532447A (en) 1938-09-14 1939-09-14 Improvements in or relating to electrical contact members

Country Status (2)

Country Link
US (1) US2200088A (en)
GB (1) GB532447A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491866A (en) * 1942-09-30 1949-12-20 Callite Tungsten Corp Alloy of high density
DE19537657A1 (en) * 1995-10-10 1997-04-17 Abb Patent Gmbh Method and device for producing a contact piece
KR100186931B1 (en) * 1996-04-30 1999-04-01 배문한 Method of manufacturing tungsten heavy alloy

Also Published As

Publication number Publication date
US2200088A (en) 1940-05-07

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