GB1043918A - Electrical contacts - Google Patents

Electrical contacts

Info

Publication number
GB1043918A
GB1043918A GB29731/63A GB2973163A GB1043918A GB 1043918 A GB1043918 A GB 1043918A GB 29731/63 A GB29731/63 A GB 29731/63A GB 2973163 A GB2973163 A GB 2973163A GB 1043918 A GB1043918 A GB 1043918A
Authority
GB
United Kingdom
Prior art keywords
silver
copper
per square
metal
square inch
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
GB29731/63A
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.)
Stackpole Carbon Co
Original Assignee
Stackpole Carbon 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 Stackpole Carbon Co filed Critical Stackpole Carbon Co
Publication of GB1043918A publication Critical patent/GB1043918A/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
    • C22C32/0047—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 carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0052—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 carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
    • 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
    • H01H1/0233—Composite material having a noble metal as the basic material and containing carbides

Landscapes

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

Abstract

An electrical contact member consists of 45-78% of silver or copper and 55-22% of a hard phase, the hard phase consisting of titanium carbide having 15.5-18.2% of combined carbon and up to 3% of free carbon. The titanium carbide in the form of powder passing a 100 mesh Tyler sieve is mixed with a fugitive binder, such as polyethylene in a volatile solvent, pressed at 10-40 tons per square inch, or as low as 2.5 tons per square inch and sintered in a neutral or reducing atmosphere e.g. for 10 minutes. A pre-sintering step in hydrogen at say 1000 DEG C. may also be used. After sintering the compacts are heated in contact with silver or copper to infiltrate the metal, e.g. where silver is the metal a temperature of 1500 DEG C. - 1600 DEG C. in a hydrogen atmosphere is used.
GB29731/63A 1962-08-08 1963-07-26 Electrical contacts Expired GB1043918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US215514A US3158469A (en) 1962-08-08 1962-08-08 Electrical contact

Publications (1)

Publication Number Publication Date
GB1043918A true GB1043918A (en) 1966-09-28

Family

ID=22803273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29731/63A Expired GB1043918A (en) 1962-08-08 1963-07-26 Electrical contacts

Country Status (3)

Country Link
US (1) US3158469A (en)
DE (1) DE1270196B (en)
GB (1) GB1043918A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487380A1 (en) * 1980-07-24 1982-01-29 Chugai Electric Ind Co Ltd PRECIOUS METAL ALLOYS WITH ANTI-ABRASIVE SANDS

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482950A (en) * 1968-03-28 1969-12-09 Stackpole Carbon Co High density electrical contacts
DE2709278C3 (en) * 1977-03-03 1980-05-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Sintered impregnating material for electrical contact pieces and process for its production
FR2441254A1 (en) * 1978-11-07 1980-06-06 Cime Bocuze CONTACT MATERIAL FOR ELECTRICAL DEVICE AND MANUFACTURING METHOD
JPS6318662B2 (en) * 1980-02-20 1988-04-19 Inst Khim Fiz An Sssr
US20060086441A1 (en) * 2004-10-27 2006-04-27 University Of Cincinnati Particle reinforced noble metal matrix composite and method of making same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE622522C (en) * 1932-08-06 1935-11-29 Metallwerk Plansee G M B H Electrical contact material that contains one or more carbides in addition to one or more lower melting and softer metals
US2313070A (en) * 1940-06-22 1943-03-09 Mallory & Co Inc P R Metal composition
US2300286A (en) * 1941-05-08 1942-10-27 Fansteel Metallurgical Corp Electrical contact
US2694007A (en) * 1950-09-12 1954-11-09 Sintercast Corp America Method for the manufacture of uniform, high-density, high-temperature resistant articles
US2765227A (en) * 1950-12-16 1956-10-02 Sintercast Corp America Titanium carbide composite material
US2798809A (en) * 1952-06-09 1957-07-09 Sintercast Corp America Methods of infiltrating high melting skeleton bodies
GB752361A (en) * 1953-03-16 1956-07-11 Renault Method of preparing compact bodies of tough heat-resistant and light materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487380A1 (en) * 1980-07-24 1982-01-29 Chugai Electric Ind Co Ltd PRECIOUS METAL ALLOYS WITH ANTI-ABRASIVE SANDS

Also Published As

Publication number Publication date
DE1270196B (en) 1968-06-12
US3158469A (en) 1964-11-24

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