EP0195965A3 - Hard metal and process for its manufacture - Google Patents

Hard metal and process for its manufacture Download PDF

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Publication number
EP0195965A3
EP0195965A3 EP86102983A EP86102983A EP0195965A3 EP 0195965 A3 EP0195965 A3 EP 0195965A3 EP 86102983 A EP86102983 A EP 86102983A EP 86102983 A EP86102983 A EP 86102983A EP 0195965 A3 EP0195965 A3 EP 0195965A3
Authority
EP
European Patent Office
Prior art keywords
percent
weight
sintered
ranging
composition
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.)
Granted
Application number
EP86102983A
Other languages
German (de)
Other versions
EP0195965A2 (en
EP0195965B1 (en
Inventor
Johannes Kolaska
Norbert Dr.-Ing. Reiter
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6266548&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0195965(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fried Krupp AG filed Critical Fried Krupp AG
Priority to AT86102983T priority Critical patent/ATE56483T1/en
Publication of EP0195965A2 publication Critical patent/EP0195965A2/en
Publication of EP0195965A3 publication Critical patent/EP0195965A3/en
Application granted granted Critical
Publication of EP0195965B1 publication Critical patent/EP0195965B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C22C29/08—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 based on tungsten carbide
    • 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
    • C22C29/067—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 comprising a particular metallic binder
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Landscapes

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

Abstract

A sintered tungsten carbide material and method for manufacturing same in which the method includes the steps of combining metal particles composed of from 75 to 95 percent by weight of a composition containing at least 70 percent by weight of tungsten carbide and from 5 to 25 percent by weight of a binder metal composition, the binder metal composition consisting essentially of from 5 to 15 percent by weight of chromium and from 85 to 95 percent by weight of nickel; pressing the metal particles into a pressed body; sintering the pressed body in a sintering chamber for a period ranging from 20 to 200 minutes, at a temperature ranging from 1400 DEG to 1500 DEG C., and in a protective atmosphere which is one of a vacuum, a noble gas, a mixture of noble gases, and hydrogen gas to form a sintered body; and treating the sintered body for a period ranging from 20 to 200 minutes, at a temperature ranging from 1300 DEG to 1400 DEG C., at a pressure ranging from 20 to 3000 bar, and in a noble gas atmosphere. The pressure/temperature treatment step densifies the sintered composition and results in an unexpectedly stronger and tougher sintered metal.
EP86102983A 1985-03-28 1986-03-06 Hard metal and process for its manufacture Expired - Lifetime EP0195965B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86102983T ATE56483T1 (en) 1985-03-28 1986-03-06 CARBIDE AND PROCESS FOR ITS PRODUCTION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3511220 1985-03-28
DE19853511220 DE3511220A1 (en) 1985-03-28 1985-03-28 HARD METAL AND METHOD FOR THE PRODUCTION THEREOF

Publications (3)

Publication Number Publication Date
EP0195965A2 EP0195965A2 (en) 1986-10-01
EP0195965A3 true EP0195965A3 (en) 1988-09-21
EP0195965B1 EP0195965B1 (en) 1990-09-12

Family

ID=6266548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102983A Expired - Lifetime EP0195965B1 (en) 1985-03-28 1986-03-06 Hard metal and process for its manufacture

Country Status (5)

Country Link
US (1) US4684405A (en)
EP (1) EP0195965B1 (en)
JP (1) JPS61227147A (en)
AT (1) ATE56483T1 (en)
DE (1) DE3511220A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS648245A (en) * 1987-06-30 1989-01-12 Sumitomo Electric Industries Hard alloy
JPH01156438A (en) * 1987-12-11 1989-06-20 Mitsubishi Metal Corp Manufacture of tungsten carbide-base sintered hard alloy for cutting tool
JP2512973B2 (en) * 1987-12-14 1996-07-03 三菱マテリアル株式会社 Manufacturing method of tungsten carbide based cemented carbide for cutting tools
DE3837006C3 (en) * 1988-10-31 1993-11-18 Krupp Widia Gmbh hard metal
US4963183A (en) * 1989-03-03 1990-10-16 Gte Valenite Corporation Corrosion resistant cemented carbide
SE9100227D0 (en) * 1991-01-25 1991-01-25 Sandvik Ab CORROSION RESISTANT CEMENTED CARBIDE
US5925197A (en) * 1992-01-24 1999-07-20 Sandvik Ab Hard alloys for tools in the wood industry
US5338506A (en) * 1992-12-21 1994-08-16 Valenite Inc. Process for making non-magnetic nickel tungsten carbide cemented carbide compositions and articles made from the same
DE4340652C2 (en) * 1993-11-30 2003-10-16 Widia Gmbh Composite and process for its manufacture
DE29511247U1 (en) * 1995-07-12 1996-08-14 EMTEC Magnetics GmbH, 67059 Ludwigshafen Cobalt binder metal alloy for hard metal alloys for hard metal tools, in particular cutting tools, and hard metal tools with it
US5816090A (en) * 1995-12-11 1998-10-06 Ametek Specialty Metal Products Division Method for pneumatic isostatic processing of a workpiece
EP0913489B1 (en) 1996-12-16 2009-03-18 Sumitomo Electric Industries, Limited Cemented carbide, process for the production thereof, and cemented carbide tools
US5885379A (en) * 1997-03-28 1999-03-23 The Landover Company Tempered powdered metallurgical construct and method
SE511212C2 (en) 1997-12-22 1999-08-23 Sandvik Ab Ballpoint pens and their use for ballpoint pens with water-based ink
US6173798B1 (en) * 1999-02-23 2001-01-16 Kennametal Inc. Tungsten carbide nickel- chromium alloy hard member and tools using the same
DE10104736A1 (en) * 2001-02-02 2002-08-08 Boart Hwf Gmbh Co Kg Earth working tool with a hard metal working element
TWI291458B (en) * 2001-10-12 2007-12-21 Phild Co Ltd Method and device for producing titanium-containing high performance water
EP1453627A4 (en) * 2001-12-05 2006-04-12 Baker Hughes Inc Consolidated hard materials, methods of manufacture, and applications
SE526194C2 (en) * 2003-08-27 2005-07-26 Seco Tools Ab Method of manufacturing a sintered body
SE526575C2 (en) * 2003-08-27 2005-10-11 Seco Tools Ab Method of manufacturing a sintered body
US7682557B2 (en) * 2006-12-15 2010-03-23 Smith International, Inc. Multiple processes of high pressures and temperatures for sintered bodies
US20100104874A1 (en) * 2008-10-29 2010-04-29 Smith International, Inc. High pressure sintering with carbon additives
US8602133B2 (en) 2010-06-03 2013-12-10 Dennis Tool Company Tool with welded cemented metal carbide inserts welded to steel and/or cemented metal carbide
US8342486B2 (en) 2010-08-09 2013-01-01 Robert S Smith Durable steam injector device
KR20140081149A (en) * 2012-12-21 2014-07-01 한국기계연구원 Manufacturing method of super hard metal containing carbon nanotube, the super hard metal manufactured using the same and cutting tools comprising the super hard metal
CH707503A2 (en) * 2013-01-17 2014-07-31 Omega Sa Pivoting axle i.e. non-magnetic balance axle, for clockwork movement of timepiece, has pivot made of composite material having metal matrix charged with hard particles in order to limit sensitivity of axle to magnetic fields
US10940538B2 (en) 2017-08-11 2021-03-09 Kennametal Inc. Grade powders and sintered cemented carbide compositions
CN111386355B (en) * 2018-11-01 2022-06-03 住友电气工业株式会社 Cemented carbide, cutting tool, and method for producing cemented carbide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB516734A (en) * 1937-07-21 1940-01-10 Fay Henry Willey Wear resistant metal alloy
US3215510A (en) * 1963-10-02 1965-11-02 Gen Electric Alloy
FR2036654A5 (en) * 1969-03-03 1970-12-24 Asea Ab
FR2387720A1 (en) * 1977-04-22 1978-11-17 Krupp Gmbh MANUFACTURING PROCESS OF HIGH RESISTANCE HARD METAL ELEMENTS

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT217818B (en) * 1959-04-18 1961-10-25 Boehler & Co Ag Geb Process for the production of hard and wear-resistant surfaces by build-up welding
US3562371A (en) * 1968-10-16 1971-02-09 Corning Glass Works High temperature gas isostatic pressing of crystalline bodies having impermeable surfaces
BE793069A (en) * 1971-12-22 1973-06-20 Philips Nv ISOSTATIC HOT PRESS PROCESS FOR MANUFACTURING DENSE SINTER BODIES
AT314212B (en) * 1972-04-04 1974-03-25 Plansee Metallwerk Process for sintering alloys with liquid phase
US3964878A (en) * 1973-06-06 1976-06-22 Gte Sylvania Incorporated Cemented carbide employing a refractory metal binder and process for producing same
US3918138A (en) * 1973-06-20 1975-11-11 Kennametal Inc Metallurgical composition embodying hard metal carbides, and method of making
US4024902A (en) * 1975-05-16 1977-05-24 Baum Charles S Method of forming metal tungsten carbide composites
US4146080A (en) * 1976-03-18 1979-03-27 Permanence Corporation Composite materials containing refractory metallic carbides and method of forming the same
SE420844B (en) * 1979-05-17 1981-11-02 Sandvik Ab SINTRAD HARD METAL OF NICKEL-BASED BINDING METAL AND VOLFORCARBID
DE3264742D1 (en) * 1981-04-06 1985-08-22 Mitsubishi Metal Corp Tungsten carbide-base hard alloy for hot-working apparatus members
JPS5935974A (en) * 1982-08-24 1984-02-27 Mitsubishi Pencil Co Ltd Printing of paper surface of notebook or the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB516734A (en) * 1937-07-21 1940-01-10 Fay Henry Willey Wear resistant metal alloy
US3215510A (en) * 1963-10-02 1965-11-02 Gen Electric Alloy
FR2036654A5 (en) * 1969-03-03 1970-12-24 Asea Ab
FR2387720A1 (en) * 1977-04-22 1978-11-17 Krupp Gmbh MANUFACTURING PROCESS OF HIGH RESISTANCE HARD METAL ELEMENTS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
R. KIEFFER et al.: "Hartmetalle", 1965, Seiten 221,228-229, Springer-Verlag, Wien, AT *

Also Published As

Publication number Publication date
EP0195965A2 (en) 1986-10-01
EP0195965B1 (en) 1990-09-12
DE3511220C2 (en) 1989-09-07
ATE56483T1 (en) 1990-09-15
JPS61227147A (en) 1986-10-09
US4684405A (en) 1987-08-04
DE3511220A1 (en) 1986-10-09

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