GB705199A - Material for electric contacts - Google Patents

Material for electric contacts

Info

Publication number
GB705199A
GB705199A GB16726/51A GB1672651A GB705199A GB 705199 A GB705199 A GB 705199A GB 16726/51 A GB16726/51 A GB 16726/51A GB 1672651 A GB1672651 A GB 1672651A GB 705199 A GB705199 A GB 705199A
Authority
GB
United Kingdom
Prior art keywords
electric contacts
july
pure hydrogen
rhenium
contacts
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
GB16726/51A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB705199A publication Critical patent/GB705199A/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H2001/0208—Contacts characterised by the material thereof containing rhenium

Landscapes

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

Abstract

705,199. Powder metallurgy. TELEFONAKTIEBOLAGET. L. M. ERICSSON, July 13, 1951 [July 14, 1950], No. 16726/51. Classes 83 (2) and 83 (4) Rhenium contacts.-Electric contacts are made by purifying rhenium powder in pure hydrogen, pressing it at pressures of between 6,000 and 9,000 kilogrammes per square centimetre in pure hydrogen and sintering it at a temperature between 1700‹ and 2500‹ C. for a period of three to thirty minutes.
GB16726/51A 1950-07-14 1951-07-13 Material for electric contacts Expired GB705199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE705199X 1950-07-14

Publications (1)

Publication Number Publication Date
GB705199A true GB705199A (en) 1954-03-10

Family

ID=20315570

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16726/51A Expired GB705199A (en) 1950-07-14 1951-07-13 Material for electric contacts

Country Status (2)

Country Link
US (1) US2733319A (en)
GB (1) GB705199A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027480A (en) * 1958-12-15 1962-03-27 Raytheon Co Electron discharge device cathodes
FR2529022A1 (en) * 1982-06-22 1983-12-23 Doloise Metallurgique Electrical contact - using a thin layer of material with a high mechanical resistance to prevent oxidation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914639A (en) * 1957-08-20 1959-11-24 Royden R Freeland Coaxial switch
US3146328A (en) * 1961-11-07 1964-08-25 Bell Telephone Labor Inc Non-sticking electrical contacts
US3511953A (en) * 1968-06-06 1970-05-12 Guardian Electric Mfg Co Silver rhenium electric contacts

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1282122A (en) * 1915-07-12 1918-10-22 Pfanstiehl Company Inc Process for the production of ductile tungsten.
US1359353A (en) * 1918-10-16 1920-11-16 Charles L Gebauer Mithod of producing formed metallic articles
US1829756A (en) * 1925-06-18 1931-11-03 Siemens Ag Homogeneous body consisting of rhenium
CH215769A (en) * 1938-12-02 1941-07-15 Lorenz C Ag Cathode for electron tubes.
US2422439A (en) * 1943-01-29 1947-06-17 American Electro Metal Corp Method of manufacturing composite structural materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027480A (en) * 1958-12-15 1962-03-27 Raytheon Co Electron discharge device cathodes
FR2529022A1 (en) * 1982-06-22 1983-12-23 Doloise Metallurgique Electrical contact - using a thin layer of material with a high mechanical resistance to prevent oxidation

Also Published As

Publication number Publication date
US2733319A (en) 1956-01-31

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