GB1376626A - Electrical contact materials - Google Patents

Electrical contact materials

Info

Publication number
GB1376626A
GB1376626A GB4987671A GB4987671A GB1376626A GB 1376626 A GB1376626 A GB 1376626A GB 4987671 A GB4987671 A GB 4987671A GB 4987671 A GB4987671 A GB 4987671A GB 1376626 A GB1376626 A GB 1376626A
Authority
GB
United Kingdom
Prior art keywords
electrical contact
cadmium oxide
contact materials
sintered
copper
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
GB4987671A
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.)
Schneider Electric USA Inc
Original Assignee
Square D 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 Square D Co filed Critical Square D Co
Priority to GB4987671A priority Critical patent/GB1376626A/en
Priority to US300629A priority patent/US3893820A/en
Publication of GB1376626A publication Critical patent/GB1376626A/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
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/16—Both compacting and sintering in successive or repeated steps
    • 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

Landscapes

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

Abstract

1376626 Sintered Cu-CdO materials SQUARE D CO 25 Oct 1972 [27 Oct 1971] 49876/71 Headings C7A and C7D Electrical contact materials are produced by mixing irregular copper powder having a particle size not greater than 350 mesh (B.S.) and cadmium oxide powder having a particle size not greater than 1 micron to provide a mixture in which cadmium oxide is present in an amount of 2À5 to 20 wt. per cent of the copper; compacting the mixture to a desired shape; and sintering the compacted shape. Preferably the mixing is effected by dry tumble milling; the compacting is effected at 30 to 40 tons per square inch; sintering is carried out in dry argon at 700‹C or below; and the sintered compacts are coined or stamped at 45 tons per square inch. The sintered products in which the cadmium oxide is present as a fine uniform dispersion in the copper matrix, are stated to be novel electrical contact materials.
GB4987671A 1971-10-27 1971-10-27 Electrical contact materials Expired GB1376626A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4987671A GB1376626A (en) 1971-10-27 1971-10-27 Electrical contact materials
US300629A US3893820A (en) 1971-10-27 1972-10-25 Cu-{8 Ag{9 -CdO electric contact materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4987671A GB1376626A (en) 1971-10-27 1971-10-27 Electrical contact materials

Publications (1)

Publication Number Publication Date
GB1376626A true GB1376626A (en) 1974-12-11

Family

ID=10453859

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4987671A Expired GB1376626A (en) 1971-10-27 1971-10-27 Electrical contact materials

Country Status (2)

Country Link
US (1) US3893820A (en)
GB (1) GB1376626A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064191A1 (en) * 1981-04-27 1982-11-10 Siemens Aktiengesellschaft Compound material for electrical contacts, and method for its manufacture

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4217139A (en) * 1977-09-09 1980-08-12 Gte Products Corporation Process of preparing an electrical contact material
US4462841A (en) * 1982-04-23 1984-07-31 Mitsubishi Kinzoku Kabushiki Kaisha Silver-metal oxide alloy electrical contact materials
US4509980A (en) * 1983-05-19 1985-04-09 Chemet Corporation Electrical contact material comprising silver, cadmium oxide and cupric salt
DE3535659C1 (en) * 1985-10-04 1987-04-02 Swarovski & Co Use of a bronze alloy for sintered grinding bodies
US5473303A (en) * 1994-05-31 1995-12-05 Therm-O-Disc, Incorporated Electrical lead

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2195307A (en) * 1939-03-09 1940-03-26 Mallory & Co Inc P R Contact
US2394501A (en) * 1942-09-12 1946-02-05 Square D Co Electrical contact
US2396101A (en) * 1942-10-23 1946-03-05 Mallory & Co Inc P R Electrical contact
US2760256A (en) * 1949-11-28 1956-08-28 Linwood T Richardson Electrical contacts
US3114631A (en) * 1960-08-24 1963-12-17 Handy & Harman Silver composition
DE1303549B (en) * 1965-06-30 1972-03-23 Siemens Ag Process for producing a sintered composite for heavy-duty electrical contacts
US3351440A (en) * 1966-01-24 1967-11-07 Lockheed Aircraft Corp Electrical contact materials
DE1564713A1 (en) * 1966-09-20 1970-10-22 Siemens Ag Multi-layer sintered contact body
US3545067A (en) * 1966-12-09 1970-12-08 Mallory & Co Inc P R Method of making preoxidized silver-cadmium oxide material having a fine silver backing
US3506437A (en) * 1967-11-07 1970-04-14 Textron Inc Method for making silver/cadmium oxide contact materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064191A1 (en) * 1981-04-27 1982-11-10 Siemens Aktiengesellschaft Compound material for electrical contacts, and method for its manufacture

Also Published As

Publication number Publication date
US3893820A (en) 1975-07-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee