GB514035A - Improvements in or relating to methods of preparing hard compositions of matter containing metallic carbides - Google Patents

Improvements in or relating to methods of preparing hard compositions of matter containing metallic carbides

Info

Publication number
GB514035A
GB514035A GB35449/38A GB3544938A GB514035A GB 514035 A GB514035 A GB 514035A GB 35449/38 A GB35449/38 A GB 35449/38A GB 3544938 A GB3544938 A GB 3544938A GB 514035 A GB514035 A GB 514035A
Authority
GB
United Kingdom
Prior art keywords
carbide
binder
tungsten
dec
naphtha
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
GB35449/38A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB514035A publication Critical patent/GB514035A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

514,035. Hard carbide alloys. McKENNA, P. M. Dec. 5, 1938, No. 35449. Convention date, Dec. 13, 1937. [Class 82 (i)] [Also in Group V] A mixture of finely comminuted hard carbide material and a metalliferous binder is heated under reduced pressure in the presence of magnesium to a temperature sufficient to cause the binder to flow. The hard carbide may be the double carbide of tungsten and titanium prepared as in Specification 514,033, [Group III], with, if desired, tantalum carbide, or niobium carbide or multicarbides, and the binder may be cobalt or nickel, if desired, with tungsten or molybdenum, the two latter metals being carburized or having carbon with them. The carbide and binder metal are ground separately or together in naphtha and surplus naphtha evaporated until about 1-2 per cent. remains to assist in moulding. The moulded material and some magnesium metal is then heated by stages to 1450‹C. in an evacuated electric induction furnace. The material is suitable for cutting tools, specific mixtures for machining various metals being given. Specification 514,034 also is referred to. -
GB35449/38A 1937-12-13 1938-12-05 Improvements in or relating to methods of preparing hard compositions of matter containing metallic carbides Expired GB514035A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US514035XA 1937-12-13 1937-12-13

Publications (1)

Publication Number Publication Date
GB514035A true GB514035A (en) 1939-10-27

Family

ID=21971091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35449/38A Expired GB514035A (en) 1937-12-13 1938-12-05 Improvements in or relating to methods of preparing hard compositions of matter containing metallic carbides

Country Status (1)

Country Link
GB (1) GB514035A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3143413A (en) * 1960-06-03 1964-08-04 Siegfried G Krapf Ceramic materials and methods for their manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3143413A (en) * 1960-06-03 1964-08-04 Siegfried G Krapf Ceramic materials and methods for their manufacture

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