EP0443048A4 - Method of producing cemented carbide or cermet alloy - Google Patents

Method of producing cemented carbide or cermet alloy

Info

Publication number
EP0443048A4
EP0443048A4 EP19900913553 EP90913553A EP0443048A4 EP 0443048 A4 EP0443048 A4 EP 0443048A4 EP 19900913553 EP19900913553 EP 19900913553 EP 90913553 A EP90913553 A EP 90913553A EP 0443048 A4 EP0443048 A4 EP 0443048A4
Authority
EP
European Patent Office
Prior art keywords
mold
cemented carbide
organic binder
atmosphere
removing step
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
EP19900913553
Other languages
English (en)
Other versions
EP0443048A1 (fr
EP0443048B1 (fr
Inventor
Nobuyuki Itami Works Kitagawa
Toshio Itami Works Nomura
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of EP0443048A1 publication Critical patent/EP0443048A1/fr
Publication of EP0443048A4 publication Critical patent/EP0443048A4/en
Application granted granted Critical
Publication of EP0443048B1 publication Critical patent/EP0443048B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1017—Multiple heating or additional steps
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1017—Multiple heating or additional steps
    • B22F3/1021—Removal of binder or filler
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/10—Inert gases
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/20—Use of vacuum
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

Procédé de production de carbure fritté ou d'alliage de cermet consistant à mélanger et à malaxer la poudre de carbure fritté ou la poudre d'alliage de cermet avec un liant organique, à mouler la poudre mélangée en une forme déterminée par moulage à injection, à éliminer le liant organique du moule résultant et à fritter le moule pour obtenir un alliage compact. L'élimination du liant organique s'effectue pendant une première étape d'extraction dans une atmosphère de gaz inerte et successivement pendant une deuxième étape d'extraction sous vide inférieur ou égal à 1 Torr. Pendant la première étape d'extraction, la pression de l'atmosphère est maintenue à une valeur égale ou supérieure à la pression atmosphérique, afin d'empêcher la formation de défauts dans le moule. Après que de fins pores continus se soient formés à l'intérieur du moule, on maintient la pression de l'atmosphère à une valeur proche du vide, afin de provoquer l'évaporation du gaz de la surface et la libération du gaz produit à l'intérieur du moule.
EP90913553A 1989-09-14 1990-09-12 Procede de production de carbure cemente ou d'alliage de cermet Expired - Lifetime EP0443048B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP238849/89 1989-09-14
JP23884989 1989-09-14
PCT/JP1990/001171 WO1991004119A1 (fr) 1989-09-14 1990-09-12 Procede de production de carbure fritte ou d'alliage de cermet

Publications (3)

Publication Number Publication Date
EP0443048A1 EP0443048A1 (fr) 1991-08-28
EP0443048A4 true EP0443048A4 (en) 1991-10-30
EP0443048B1 EP0443048B1 (fr) 1994-12-14

Family

ID=17036179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90913553A Expired - Lifetime EP0443048B1 (fr) 1989-09-14 1990-09-12 Procede de production de carbure cemente ou d'alliage de cermet

Country Status (6)

Country Link
EP (1) EP0443048B1 (fr)
KR (1) KR940009337B1 (fr)
CA (1) CA2041668C (fr)
DE (1) DE69015150T2 (fr)
TW (1) TW225493B (fr)
WO (1) WO1991004119A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5403373A (en) * 1991-05-31 1995-04-04 Sumitomo Electric Industries, Ltd. Hard sintered component and method of manufacturing such a component
JPH0790465A (ja) * 1993-09-24 1995-04-04 Ishizuka Kenkyusho:Kk 耐火物・金属複合体およびその製法
DE19709651A1 (de) * 1996-03-16 1997-10-30 Widia Gmbh Verbundwerkstoff und Verfahren zu seiner Herstellung
SE9603936D0 (sv) * 1996-10-25 1996-10-25 Sandvik Ab Method of making cemented carbide by metal injection molding
DE19855422A1 (de) 1998-12-01 2000-06-08 Basf Ag Hartstoff-Sinterformteil mit einem nickel- und kobaltfreien, stickstoffhaltigen Stahl als Binder der Hartstoffphase
SE526194C2 (sv) * 2003-08-27 2005-07-26 Seco Tools Ab Metod för att tillverka en sintrad kropp
SE529202C2 (sv) * 2005-05-17 2007-05-29 Sandvik Intellectual Property Sätt att tillverka en agglomererad pulverblandning av en slurry och agglomererat pulver
SE533922C2 (sv) 2008-12-18 2011-03-01 Seco Tools Ab Sätt att tillverka hårdmetallprodukter
CN104357696B (zh) * 2014-12-01 2016-04-27 技锋精密刀具（马鞍山）有限公司 一种硬质合金石蜡生产工艺制品的烧结工艺
CN109822089B (zh) * 2019-01-18 2022-05-13 株洲金佰利硬质合金有限公司 一种硬质合金生产用成型剂
CN116023143B (zh) * 2021-10-25 2024-02-06 中国科学院上海硅酸盐研究所 一种碳化硅陶瓷的制备方法
CN119320891B (zh) * 2024-10-10 2025-07-18 有研工程技术研究院有限公司 一种纳米颗粒增强镁基材料中间合金的制备方法
CN120536770B (zh) * 2025-07-29 2025-10-10 湖南博云东方粉末冶金有限公司 一种高韧性超粗晶硬质合金的制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233256A (en) * 1978-12-18 1980-11-11 The Carborundum Company Process for injection molding sinterable carbide ceramic materials
DE3611271A1 (de) * 1986-04-04 1987-10-15 Licentia Gmbh Verfahren zur herstellung von metallformteilen
US4836980A (en) * 1987-01-26 1989-06-06 Chugai Ro Co., Ltd. Method of sintering an injection-molded article

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51126308A (en) * 1975-04-28 1976-11-04 Shinroku Saito Process for producing a super alloy plate
US4305756A (en) * 1980-01-14 1981-12-15 Witec Cayman Patents, Ltd. Method and means for removing binder from a green body
JPH07116487B2 (ja) * 1988-06-30 1995-12-13 三菱製鋼株式会社 金属粉末射出成形体の脱脂方法
JPH0270004A (ja) * 1988-09-02 1990-03-08 Mitsubishi Metal Corp 射出成形体の脱脂方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233256A (en) * 1978-12-18 1980-11-11 The Carborundum Company Process for injection molding sinterable carbide ceramic materials
DE3611271A1 (de) * 1986-04-04 1987-10-15 Licentia Gmbh Verfahren zur herstellung von metallformteilen
US4836980A (en) * 1987-01-26 1989-06-06 Chugai Ro Co., Ltd. Method of sintering an injection-molded article

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9104119A1 *

Also Published As

Publication number Publication date
TW225493B (fr) 1994-06-21
KR940009337B1 (ko) 1994-10-07
DE69015150T2 (de) 1995-05-04
JPH03177506A (ja) 1991-08-01
CA2041668A1 (fr) 1991-03-15
WO1991004119A1 (fr) 1991-04-04
KR920700819A (ko) 1992-08-10
DE69015150D1 (de) 1995-01-26
EP0443048A1 (fr) 1991-08-28
CA2041668C (fr) 1999-08-03
EP0443048B1 (fr) 1994-12-14

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