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GB497144A - Improvements in or relating to the manufacture of hard metal alloys - Google Patents

Improvements in or relating to the manufacture of hard metal alloys

Info

Publication number
GB497144A
GB497144A GB23315/38A GB2331538A GB497144A GB 497144 A GB497144 A GB 497144A GB 23315/38 A GB23315/38 A GB 23315/38A GB 2331538 A GB2331538 A GB 2331538A GB 497144 A GB497144 A GB 497144A
Authority
GB
United Kingdom
Prior art keywords
relating
manufacture
mixture
metal alloys
hard metal
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
GB23315/38A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB497144A publication Critical patent/GB497144A/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

Landscapes

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

Abstract

In making alloys of tungsten carbide and cobalt by a method wherein a powdered mixture is sintered in a non-oxidizing atmosphere, the sintering is effected while the mass is embedded in a mixture of carbon and a refractory substance such as alumina or zirconium oxide, the carbon content of such mixture being such as either to cause no carbonization or decarbonization of the product, or so to adjust its carbon content as to obtain a uniformly compact final product.
GB23315/38A 1937-08-09 1938-08-06 Improvements in or relating to the manufacture of hard metal alloys Expired GB497144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE497144X 1937-08-09

Publications (1)

Publication Number Publication Date
GB497144A true GB497144A (en) 1938-12-13

Family

ID=6545136

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23315/38A Expired GB497144A (en) 1937-08-09 1938-08-06 Improvements in or relating to the manufacture of hard metal alloys

Country Status (1)

Country Link
GB (1) GB497144A (en)

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