GB1500736A - Method of forming a sintered ferrous alloy - Google Patents

Method of forming a sintered ferrous alloy

Info

Publication number
GB1500736A
GB1500736A GB714075A GB714075A GB1500736A GB 1500736 A GB1500736 A GB 1500736A GB 714075 A GB714075 A GB 714075A GB 714075 A GB714075 A GB 714075A GB 1500736 A GB1500736 A GB 1500736A
Authority
GB
United Kingdom
Prior art keywords
sintered
infiltrated
forming
sintered ferrous
sintering
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
GB714075A
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.)
Nippon Piston Ring Co Ltd
Original Assignee
Nippon Piston Ring Co 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 Nippon Piston Ring Co Ltd filed Critical Nippon Piston Ring Co Ltd
Publication of GB1500736A publication Critical patent/GB1500736A/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
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0242—Making ferrous alloys by powder metallurgy using the impregnating technique
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • B22F3/26—Impregnating

Abstract

1500736 Infiltrated sintered ferrous bodies NIPPON PISTON RING CO Ltd 20 Feb 1975 [21 Feb 1974] 7140/75 HeadingC7D Sintered ferrous alloys suitable for use as valve seats are made by mixing Fe powder with Mo and/ or W, C and optionally at least one of Ni, Mn, Cr and Cu, pressing and sintering the mixture to form a sintered product with a pearlitic structure which is then machined, infiltrated with Cu or a Cu base alloy and cooled to form a structure which is at least 10% martensitic and/or bainite. The powder mixture preferably contains 0À5-5 wt per cent Mo and/or W. Pressing and sintering are conventional e.g. at 4-6 t/sq cm and 1100-1200‹C and 50-85% of the interstitial volume of the sintered alloy is infiltrated with Cu or a Cu base alloy.
GB714075A 1974-02-21 1975-02-20 Method of forming a sintered ferrous alloy Expired GB1500736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1997174A JPS50115108A (en) 1974-02-21 1974-02-21

Publications (1)

Publication Number Publication Date
GB1500736A true GB1500736A (en) 1978-02-08

Family

ID=12014069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB714075A Expired GB1500736A (en) 1974-02-21 1975-02-20 Method of forming a sintered ferrous alloy

Country Status (3)

Country Link
JP (1) JPS50115108A (en)
DE (1) DE2507375A1 (en)
GB (1) GB1500736A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2249318B (en) * 1990-10-22 1994-06-15 Raybestos Prod Co Metallic friction facing material and its production
GB2364326A (en) * 2000-05-02 2002-01-23 Hitachi Powdered Metals Valve seat material and production method
US9212572B2 (en) 2009-12-21 2015-12-15 Hitachi Powdered Metals Co., Ltd. Sintered valve guide and production method therefor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE411306B (en) * 1976-01-28 1979-12-17 Severinsson Lars M FORM INTENDED FOR MOLDING OF MOLDABLE MATERIAL AND METHODS OF MANUFACTUREING SUCH SHAPE
JPS60230961A (en) * 1984-04-28 1985-11-16 Nippon Steel Corp Disk material for disk brake
DE3825463A1 (en) * 1988-07-27 1990-02-01 Schwaebische Huettenwerke Gmbh METHOD FOR PRODUCING A MOLDING PART FROM SINTERMETAL AND MOLDING PART MADE THEREOF
JP2008057657A (en) * 2006-08-31 2008-03-13 Citizen Seimitsu Co Ltd Main spindle bearing structure of nc automatic lathe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2249318B (en) * 1990-10-22 1994-06-15 Raybestos Prod Co Metallic friction facing material and its production
GB2364326A (en) * 2000-05-02 2002-01-23 Hitachi Powdered Metals Valve seat material and production method
US6660056B2 (en) 2000-05-02 2003-12-09 Hitachi Powdered Metals Co., Ltd. Valve seat for internal combustion engines
GB2364326B (en) * 2000-05-02 2004-02-18 Hitachi Powdered Metals Valve seat for internal combustion engines and process of production therefor
US9212572B2 (en) 2009-12-21 2015-12-15 Hitachi Powdered Metals Co., Ltd. Sintered valve guide and production method therefor
DE102010055463C5 (en) * 2009-12-21 2018-02-01 Hitachi Powdered Metals Co., Ltd. Sintered valve guide and manufacturing method therefor

Also Published As

Publication number Publication date
DE2507375A1 (en) 1975-08-28
JPS50115108A (en) 1975-09-09

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19950219