GB426506A - Improvements in and relating to hard metal alloys - Google Patents

Improvements in and relating to hard metal alloys

Info

Publication number
GB426506A
GB426506A GB34855/33A GB3485533A GB426506A GB 426506 A GB426506 A GB 426506A GB 34855/33 A GB34855/33 A GB 34855/33A GB 3485533 A GB3485533 A GB 3485533A GB 426506 A GB426506 A GB 426506A
Authority
GB
United Kingdom
Prior art keywords
stages
carbides
metals
metal
finely
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
GB34855/33A
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.)
Gebrueder Boehler and Co AG
Original Assignee
Gebrueder Boehler and Co AG
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 Gebrueder Boehler and Co AG filed Critical Gebrueder Boehler and Co AG
Publication of GB426506A publication Critical patent/GB426506A/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

Carbides of hard metals, e.g. tungsten, titanium, chromium, and vanadium, for making sintered alloys, are obtained by heating the metal or its oxide with carbon in stages at successively increasing temperatures, and grinding finely between the stages. Specification 395,721 is referred to.ALSO:Carbides of hard metals, e.g. tungsten, titanium, chromium, and vanadium, for making sintered alloys, are obtained by heating the metal or its oxide with carbon in stages at successively increasing temperatures, and grinding finely between the stages. The metals of lower melting point, e.g. iron, nickel, or cobalt, employed to bind the carbides may be obtained by reduction in stages of the corresponding oxides with a high flow of reducing gas, e.g. hydrogen. The finely-divided carbide or carbides and metal or metals are mixed and ground together and sintered. Specification 395,721 is referred to.
GB34855/33A 1932-12-10 1933-12-11 Improvements in and relating to hard metal alloys Expired GB426506A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE426506X 1932-12-10

Publications (1)

Publication Number Publication Date
GB426506A true GB426506A (en) 1935-04-04

Family

ID=6477192

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34855/33A Expired GB426506A (en) 1932-12-10 1933-12-11 Improvements in and relating to hard metal alloys

Country Status (1)

Country Link
GB (1) GB426506A (en)

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