GB389564A - Improvements in and relating to metal compositions - Google Patents

Improvements in and relating to metal compositions

Info

Publication number
GB389564A
GB389564A GB32127/31A GB3212731A GB389564A GB 389564 A GB389564 A GB 389564A GB 32127/31 A GB32127/31 A GB 32127/31A GB 3212731 A GB3212731 A GB 3212731A GB 389564 A GB389564 A GB 389564A
Authority
GB
United Kingdom
Prior art keywords
metal
carbide
prepared
powdered
tungsten carbide
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
GB32127/31A
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 GB389564A publication Critical patent/GB389564A/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
    • 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

Landscapes

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

Abstract

Tantalum carbide and tungsten carbide are prepared by firing an intimate mixture of the powdered metals and carbon in a closed graphite tube in a hydrogen furnace at about 1550-1600 DEG C. Specification 319,698, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to.ALSO:A hard composition comprises tantalum carbide, a carbide of a metal of the sixth group of the periodic classification of the elements, for example tungsten carbide, and a metal of the iron group. Preferably the carbides are present in equal proportions by weight. Tantalum carbide is prepared by firing an intimate mixture of the powdered metal and carbon in a closed graphite tube in a hydrogen furnace at about 1550 DEG -1600 DEG C., and tungsten carbide may be prepared in a similar manner. The carbides are mixed with the powdered binding metal, pressed into shape, and sintered at 1400 DEG C. The product may be used as a tool bit which may be secured to a supporting shank, for example, by copper brazing. Specification 319,698, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to.
GB32127/31A 1930-11-19 1931-11-19 Improvements in and relating to metal compositions Expired GB389564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US389564XA 1930-11-19 1930-11-19

Publications (1)

Publication Number Publication Date
GB389564A true GB389564A (en) 1933-03-23

Family

ID=21902891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32127/31A Expired GB389564A (en) 1930-11-19 1931-11-19 Improvements in and relating to metal compositions

Country Status (1)

Country Link
GB (1) GB389564A (en)

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