GB1115908A - Sintered hard metal - Google Patents

Sintered hard metal

Info

Publication number
GB1115908A
GB1115908A GB4322664A GB4322664A GB1115908A GB 1115908 A GB1115908 A GB 1115908A GB 4322664 A GB4322664 A GB 4322664A GB 4322664 A GB4322664 A GB 4322664A GB 1115908 A GB1115908 A GB 1115908A
Authority
GB
United Kingdom
Prior art keywords
hard metal
layer
carbide
sintered hard
powder mixture
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
GB4322664A
Inventor
Edward Moor Trent
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.)
Wickman Wimet Ltd
Original Assignee
Wickman Wimet 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 Wickman Wimet Ltd filed Critical Wickman Wimet Ltd
Priority to GB4322664A priority Critical patent/GB1115908A/en
Publication of GB1115908A publication Critical patent/GB1115908A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)

Abstract

A hard metal article with a tough body and a wear resistant surface is formed by sintering together a compact of two different powders, one powder mixture comprising at least 80%WC, a binder such as Fe, Co or Ni and optionally a minor proportion of a carbide of Ti, Zr, Hf, V, Nb, Ta, and the powder mixture forming the surface layer comprising a major proportion of a carbide of Ti, Zr, Hf, V, Nb, Ta and a minor proportion of Fe, Co or Ni, the sintering being such as to allow the Fe, Co or Ni of the surface layer to migrate into the body. In an example a compact formed of a first layer of 94%WC-6%Co and a second layer of 82% TaC -9%WC - 9%Co is sintered under vacuum at 1440 DEG C. for 1 hour.
GB4322664A 1964-10-22 1964-10-22 Sintered hard metal Expired GB1115908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4322664A GB1115908A (en) 1964-10-22 1964-10-22 Sintered hard metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4322664A GB1115908A (en) 1964-10-22 1964-10-22 Sintered hard metal

Publications (1)

Publication Number Publication Date
GB1115908A true GB1115908A (en) 1968-06-06

Family

ID=10427821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4322664A Expired GB1115908A (en) 1964-10-22 1964-10-22 Sintered hard metal

Country Status (1)

Country Link
GB (1) GB1115908A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116584A (en) * 1982-03-11 1983-09-28 Metallurg Inc Sintered hardmetals
US4610931A (en) * 1981-03-27 1986-09-09 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
EP0212524A2 (en) * 1985-08-19 1987-03-04 Carboloy Inc. Hard metal alloy with surface region enriched with tantalum, niobium, vanadium or combinations thereof and methods of making the same
US4961780A (en) * 1988-06-29 1990-10-09 Vermont American Corporation Boron-treated hard metal
US5116416A (en) * 1988-03-11 1992-05-26 Vermont American Corporation Boron-treated hard metal
USRE34180E (en) * 1981-03-27 1993-02-16 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
WO1996020058A1 (en) * 1994-12-23 1996-07-04 Kennametal Inc. Composite cermet articles and method of making
US5541006A (en) * 1994-12-23 1996-07-30 Kennametal Inc. Method of making composite cermet articles and the articles
US5623723A (en) * 1995-08-11 1997-04-22 Greenfield; Mark S. Hard composite and method of making the same
US5677042A (en) * 1994-12-23 1997-10-14 Kennametal Inc. Composite cermet articles and method of making
US5976707A (en) * 1996-09-26 1999-11-02 Kennametal Inc. Cutting insert and method of making the same
US6183687B1 (en) 1995-08-11 2001-02-06 Kennametal Inc. Hard composite and method of making the same
US6908688B1 (en) 2000-08-04 2005-06-21 Kennametal Inc. Graded composite hardmetals
CN103691959A (en) * 2013-12-23 2014-04-02 中国钢研科技集团有限公司 Composite structure hard alloy gear and preparation method thereof

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4610931A (en) * 1981-03-27 1986-09-09 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
USRE34180E (en) * 1981-03-27 1993-02-16 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
GB2116584A (en) * 1982-03-11 1983-09-28 Metallurg Inc Sintered hardmetals
EP0212524A2 (en) * 1985-08-19 1987-03-04 Carboloy Inc. Hard metal alloy with surface region enriched with tantalum, niobium, vanadium or combinations thereof and methods of making the same
EP0212524A3 (en) * 1985-08-19 1988-01-27 Carboloy Inc. Hard metal alloy with surface region enriched with tantalum, niobium, vanadium or combinations thereof and methods of making the same
US5116416A (en) * 1988-03-11 1992-05-26 Vermont American Corporation Boron-treated hard metal
US4961780A (en) * 1988-06-29 1990-10-09 Vermont American Corporation Boron-treated hard metal
US5686119A (en) * 1994-12-23 1997-11-11 Kennametal Inc. Composite cermet articles and method of making
US5789686A (en) * 1994-12-23 1998-08-04 Kennametal Inc. Composite cermet articles and method of making
CN1107565C (en) * 1994-12-23 2003-05-07 钴碳化钨硬质合金公司 Composite cermet articles and method of making
US5677042A (en) * 1994-12-23 1997-10-14 Kennametal Inc. Composite cermet articles and method of making
US5679445A (en) * 1994-12-23 1997-10-21 Kennametal Inc. Composite cermet articles and method of making
WO1996020058A1 (en) * 1994-12-23 1996-07-04 Kennametal Inc. Composite cermet articles and method of making
US5697042A (en) * 1994-12-23 1997-12-09 Kennametal Inc. Composite cermet articles and method of making
US5697046A (en) * 1994-12-23 1997-12-09 Kennametal Inc. Composite cermet articles and method of making
US5762843A (en) * 1994-12-23 1998-06-09 Kennametal Inc. Method of making composite cermet articles
US5541006A (en) * 1994-12-23 1996-07-30 Kennametal Inc. Method of making composite cermet articles and the articles
US5792403A (en) * 1994-12-23 1998-08-11 Kennametal Inc. Method of molding green bodies
US5806934A (en) * 1994-12-23 1998-09-15 Kennametal Inc. Method of using composite cermet articles
CN1091014C (en) * 1994-12-23 2002-09-18 钴碳化钨硬质合金公司 Composite cermet articles and method of making
US6183687B1 (en) 1995-08-11 2001-02-06 Kennametal Inc. Hard composite and method of making the same
US5623723A (en) * 1995-08-11 1997-04-22 Greenfield; Mark S. Hard composite and method of making the same
US5976707A (en) * 1996-09-26 1999-11-02 Kennametal Inc. Cutting insert and method of making the same
US6908688B1 (en) 2000-08-04 2005-06-21 Kennametal Inc. Graded composite hardmetals
CN103691959A (en) * 2013-12-23 2014-04-02 中国钢研科技集团有限公司 Composite structure hard alloy gear and preparation method thereof

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