GB346632A - Improvements in and relating to hard metallic compositions - Google Patents

Improvements in and relating to hard metallic compositions

Info

Publication number
GB346632A
GB346632A GB22212/30A GB2221230A GB346632A GB 346632 A GB346632 A GB 346632A GB 22212/30 A GB22212/30 A GB 22212/30A GB 2221230 A GB2221230 A GB 2221230A GB 346632 A GB346632 A GB 346632A
Authority
GB
United Kingdom
Prior art keywords
relating
hard metallic
metallic compositions
carbon
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
GB22212/30A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB346632A publication Critical patent/GB346632A/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
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
    • C22C1/053—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds
    • C22C1/055—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds using carbon

Landscapes

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

Abstract

A hard material consisting of tungsten, carbon, and cobalt is made by adding a dry mixture of carbon and tungsten oxide to an aqueous solution of cobalt acetate, evaporating and heating the mixture to decompose the acetate, firing the mass in a reducing atmosphere such as hydrogen, and then pressing and sintering.
GB22212/30A 1929-07-31 1930-07-23 Improvements in and relating to hard metallic compositions Expired GB346632A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US346632XA 1929-07-31 1929-07-31

Publications (1)

Publication Number Publication Date
GB346632A true GB346632A (en) 1931-04-16

Family

ID=21877818

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22212/30A Expired GB346632A (en) 1929-07-31 1930-07-23 Improvements in and relating to hard metallic compositions

Country Status (1)

Country Link
GB (1) GB346632A (en)

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