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GB705844A - Improvements in hard metal bodies forming cutting edges in percussive rock drilling tools - Google Patents

Improvements in hard metal bodies forming cutting edges in percussive rock drilling tools

Info

Publication number
GB705844A
GB705844A GB5449/51A GB544951A GB705844A GB 705844 A GB705844 A GB 705844A GB 5449/51 A GB5449/51 A GB 5449/51A GB 544951 A GB544951 A GB 544951A GB 705844 A GB705844 A GB 705844A
Authority
GB
United Kingdom
Prior art keywords
hard metal
cutting edges
rock drilling
drilling tools
metal bodies
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
GB5449/51A
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.)
Sandvik AB
Original Assignee
Sandvikens Jernverks AB
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 Sandvikens Jernverks AB filed Critical Sandvikens Jernverks AB
Publication of GB705844A publication Critical patent/GB705844A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C29/00Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06Alloys 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
    • C22C29/08Alloys 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 based on tungsten carbide

Landscapes

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

Abstract

A sintered hard metal insert for percussive drills consists of at least 85 per cent. of tungsten carbide or tungsten carbide and molybenum carbide, 6-10 per cent. of an auxiliary metal or alloy, e.g. iron, nickel, cobalt, copper or silver, and up to 5 per cent. of one or more further carbides or nitrides, silicides, borides, or diamond, the hard particles having a mean grain size of 2.4-6m determined on polished and etched sections. When cobalt is used as the auxiliary metal, the larger the grain size of the hard particles the lower the cobalt content may be.
GB5449/51A 1950-03-11 1951-03-06 Improvements in hard metal bodies forming cutting edges in percussive rock drilling tools Expired GB705844A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE705844X 1950-03-11

Publications (1)

Publication Number Publication Date
GB705844A true GB705844A (en) 1954-03-17

Family

ID=20315591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5449/51A Expired GB705844A (en) 1950-03-11 1951-03-06 Improvements in hard metal bodies forming cutting edges in percussive rock drilling tools

Country Status (1)

Country Link
GB (1) GB705844A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731711A (en) * 1954-05-13 1956-01-24 Gen Electric Sintered tungsten carbide composition
US3370928A (en) * 1964-11-13 1968-02-27 United Aircraft Corp Tungsten carbide base cerment
DE4440541A1 (en) * 1994-11-12 1996-05-15 Fraunhofer Ges Forschung Hard metal alloys and cermets
GB2383799A (en) * 2002-01-08 2003-07-09 Planet Diamond Tools Europ Ltd Diamond containing cermet
CN101670421B (en) * 2009-10-16 2011-02-02 大连理工大学 Methods for preparing copper-plate surface modifying WC-Cu alloy layer for continuous-cast crystallizer and application thereof
WO2023091830A1 (en) * 2021-11-20 2023-05-25 Hyperion Materials & Technologies, Inc. Improved cemented carbides

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731711A (en) * 1954-05-13 1956-01-24 Gen Electric Sintered tungsten carbide composition
US3370928A (en) * 1964-11-13 1968-02-27 United Aircraft Corp Tungsten carbide base cerment
DE4440541A1 (en) * 1994-11-12 1996-05-15 Fraunhofer Ges Forschung Hard metal alloys and cermets
GB2383799A (en) * 2002-01-08 2003-07-09 Planet Diamond Tools Europ Ltd Diamond containing cermet
CN101670421B (en) * 2009-10-16 2011-02-02 大连理工大学 Methods for preparing copper-plate surface modifying WC-Cu alloy layer for continuous-cast crystallizer and application thereof
WO2023091830A1 (en) * 2021-11-20 2023-05-25 Hyperion Materials & Technologies, Inc. Improved cemented carbides

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