EP2436463A3 - Sintered materials for valve guides and production methods therefor - Google Patents

Sintered materials for valve guides and production methods therefor Download PDF

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Publication number
EP2436463A3
EP2436463A3 EP11007891A EP11007891A EP2436463A3 EP 2436463 A3 EP2436463 A3 EP 2436463A3 EP 11007891 A EP11007891 A EP 11007891A EP 11007891 A EP11007891 A EP 11007891A EP 2436463 A3 EP2436463 A3 EP 2436463A3
Authority
EP
European Patent Office
Prior art keywords
phase
valve guides
production methods
dispersed
methods therefor
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
EP11007891A
Other languages
German (de)
French (fr)
Other versions
EP2436463A2 (en
EP2436463B1 (en
Inventor
Hiroki Fujitsuka
Hideaki Kawata
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.)
Resonac Corp
Original Assignee
Hitachi Powdered Metals 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 Hitachi Powdered Metals Co Ltd filed Critical Hitachi Powdered Metals Co Ltd
Publication of EP2436463A2 publication Critical patent/EP2436463A2/en
Publication of EP2436463A3 publication Critical patent/EP2436463A3/en
Application granted granted Critical
Publication of EP2436463B1 publication Critical patent/EP2436463B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0264—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements the maximum content of each alloying element not exceeding 5%
    • 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
    • B22F3/1028—Controlled cooling
    • 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
    • B22F3/11—Making porous workpieces or articles
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/008—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of engine cylinder parts or of piston parts other than piston rings
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C13/00—Alloys based on tin
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/02—Alloys based on copper with tin as the next major constituent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials

Landscapes

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

Abstract

A sintered material for valve guides consists of, by mass %, 1.3 to 3 % of C, 1 to 4 % of Cu, and the balance of Fe and inevitable impurities. The sintered material exhibits a metallic structure made of pores and a matrix, the matrix is a mixed structure of a pearlite phase, a ferrite phase, an iron carbide phase, and a copper phase, and a part of the pores includes graphite that is dispersed therein. The iron carbide phase is dispersed at 3 to 25 % by area ratio and the copper phase is dispersed at 0.5 to 3.5 % by area ratio with respect to a cross section of the metallic structure, respectively.
EP20110007891 2010-09-30 2011-09-28 Sintered materials for valve guides and production methods therefor Active EP2436463B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010222975 2010-09-30

Publications (3)

Publication Number Publication Date
EP2436463A2 EP2436463A2 (en) 2012-04-04
EP2436463A3 true EP2436463A3 (en) 2012-07-11
EP2436463B1 EP2436463B1 (en) 2013-07-10

Family

ID=44719102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110007891 Active EP2436463B1 (en) 2010-09-30 2011-09-28 Sintered materials for valve guides and production methods therefor

Country Status (4)

Country Link
EP (1) EP2436463B1 (en)
JP (1) JP5783457B2 (en)
KR (1) KR101365816B1 (en)
CN (1) CN102443739B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5960001B2 (en) * 2012-09-12 2016-08-02 Ntn株式会社 Machine parts made of iron-based sintered metal and manufacturing method thereof
CN102888562B (en) * 2012-10-17 2014-12-10 宁波拓发汽车零部件有限公司 Damper compression valve and preparation method thereof
CN103084575B (en) * 2012-11-25 2015-04-22 安徽普源分离机械制造有限公司 Powder metallurgy manufacturing process for valve body of anti-explosion valve
JP6522301B2 (en) * 2013-09-13 2019-05-29 Ntn株式会社 Sintered bearing for EGR valve and method of manufacturing the same
SG11201810201WA (en) * 2016-05-19 2018-12-28 Hitachi Chemical Co Ltd Oil-impregnated iron-based sintered bearing
JP7188434B2 (en) * 2018-02-23 2022-12-13 昭和電工マテリアルズ株式会社 Sintered valve guide and its manufacturing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481763A1 (en) * 1990-10-18 1992-04-22 Hitachi Powdered Metals Co., Ltd. Sintered metal parts and their production method
US6012703A (en) * 1996-07-10 2000-01-11 Hitachi Powdered Metals Co., Ltd. Valve guide and process for manufacturing thereof
US20020023518A1 (en) * 2000-08-31 2002-02-28 Katsunao Chikahata Material for valve guides
US20050063856A1 (en) * 2003-09-10 2005-03-24 Motohiro Miyasaka Manufacturing processes of sintered alloy and oil-impregnated sintered bearing

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51119419A (en) 1975-04-11 1976-10-20 Hitachi Powdered Metals Co Ltd Valve guide material
JPS5534858A (en) * 1978-09-04 1980-03-11 Hitachi Ltd Open ventilation type rotary motor with inertia separator
JPS58224147A (en) * 1982-06-21 1983-12-26 Daikin Ind Ltd Bearing metal of tightly sealed compressor
JP2680927B2 (en) 1990-10-18 1997-11-19 日立粉末冶金株式会社 Iron-based sintered sliding member
JPH0641699A (en) * 1992-07-27 1994-02-15 Mitsubishi Materials Corp Valve guide member made of fe-base sintered alloy excellent in wear resistance
JPH06207253A (en) * 1993-01-06 1994-07-26 Toshiba Corp Iron base sliding part material
JPH0953422A (en) * 1995-08-09 1997-02-25 Mitsubishi Materials Corp Copper infiltrative fe radical sintered alloy valve guide member with excellent wear resistance and low counter-attackability
JPH0953421A (en) * 1995-08-09 1997-02-25 Mitsubishi Materials Corp Fe radical sintered alloy valve guide member with excellent wear resistance and low counter-attackability
JPH0953423A (en) * 1995-08-09 1997-02-25 Mitsubishi Materials Corp Lead infiltrative fe radical sintered alloy valve guide member with excellent wear resistance and low-counter attackability
JP2000080451A (en) * 1998-07-10 2000-03-21 Nippon Piston Ring Co Ltd Sintered body for wear resistant ring and wear resistant ring
JP4323070B2 (en) * 2000-08-31 2009-09-02 日立粉末冶金株式会社 Valve guide material
JP4323069B2 (en) 2000-08-31 2009-09-02 日立粉末冶金株式会社 Valve guide material
US6599345B2 (en) * 2001-10-02 2003-07-29 Eaton Corporation Powder metal valve guide
JP4323467B2 (en) * 2004-07-15 2009-09-02 日立粉末冶金株式会社 Sintered valve guide and manufacturing method thereof
US20060032328A1 (en) * 2004-07-15 2006-02-16 Katsunao Chikahata Sintered valve guide and manufacturing method thereof
WO2006080554A1 (en) * 2005-01-31 2006-08-03 Komatsu Ltd. Sintered material, iron-based sintered sliding material and process for producing the same, sliding member and process for producing the same, and connecting apparatus
JP4886545B2 (en) 2007-02-22 2012-02-29 日立粉末冶金株式会社 Sintered oil-impregnated bearing and manufacturing method thereof
JP5247329B2 (en) * 2008-09-25 2013-07-24 日立粉末冶金株式会社 Iron-based sintered bearing and manufacturing method thereof
JP5208647B2 (en) * 2008-09-29 2013-06-12 日立粉末冶金株式会社 Manufacturing method of sintered valve guide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481763A1 (en) * 1990-10-18 1992-04-22 Hitachi Powdered Metals Co., Ltd. Sintered metal parts and their production method
US6012703A (en) * 1996-07-10 2000-01-11 Hitachi Powdered Metals Co., Ltd. Valve guide and process for manufacturing thereof
US20020023518A1 (en) * 2000-08-31 2002-02-28 Katsunao Chikahata Material for valve guides
US20050063856A1 (en) * 2003-09-10 2005-03-24 Motohiro Miyasaka Manufacturing processes of sintered alloy and oil-impregnated sintered bearing

Also Published As

Publication number Publication date
KR101365816B1 (en) 2014-02-20
CN102443739B (en) 2014-05-07
JP2012092441A (en) 2012-05-17
CN102443739A (en) 2012-05-09
EP2436463A2 (en) 2012-04-04
KR20120034052A (en) 2012-04-09
EP2436463B1 (en) 2013-07-10
JP5783457B2 (en) 2015-09-24

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