EP1792677A4 - Method for forming powder in powder metallurgy and method for producing sintered parts - Google Patents

Method for forming powder in powder metallurgy and method for producing sintered parts

Info

Publication number
EP1792677A4
EP1792677A4 EP05776099A EP05776099A EP1792677A4 EP 1792677 A4 EP1792677 A4 EP 1792677A4 EP 05776099 A EP05776099 A EP 05776099A EP 05776099 A EP05776099 A EP 05776099A EP 1792677 A4 EP1792677 A4 EP 1792677A4
Authority
EP
European Patent Office
Prior art keywords
powder
ester wax
sintered parts
producing sintered
mixed powder
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.)
Withdrawn
Application number
EP05776099A
Other languages
German (de)
French (fr)
Japanese (ja)
Other versions
EP1792677A1 (en
Inventor
Terukazu Tokuoka
Kazuhiro Hirose
Takao Nishioka
Masazumi Hanada
Kouhei Sawada
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 EP1792677A1 publication Critical patent/EP1792677A1/en
Publication of EP1792677A4 publication Critical patent/EP1792677A4/en
Withdrawn legal-status Critical Current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
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • 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
    • B22F3/02—Compacting only
    • B22F2003/026—Mold wall lubrication or article surface lubrication
    • 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

Abstract

At least one type of solid ester wax (2) is added to an iron-based powder (1) for powder metallurgy, to obtain a mixed powder (3). The mixed powder (3) is molded. A method for producing sintered parts which comprises the above method for forming a mixed powder, wherein the ester wax (2) has a melting point of 100˚C or less and the ester wax (2) is added in an amount in the range of 0.02 to 0.6 mass %, and a method for molding, wherein the temperature of a mold is set at a temperature from (the melting point of the ester wax (2) + 10˚C) to 200˚C, liquefies the ester wax (2) and allows the liquefied wax to bleed out, which results in the preparation of a sintered portion having a complicated shape, good surface characteristics and high density, with ease.
EP05776099A 2004-09-03 2005-08-31 Method for forming powder in powder metallurgy and method for producing sintered parts Withdrawn EP1792677A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004257464 2004-09-03
PCT/JP2005/015874 WO2006025432A1 (en) 2004-09-03 2005-08-31 Method for forming powder in powder metallurgy and method for producing sintered parts

Publications (2)

Publication Number Publication Date
EP1792677A1 EP1792677A1 (en) 2007-06-06
EP1792677A4 true EP1792677A4 (en) 2009-07-01

Family

ID=36000082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05776099A Withdrawn EP1792677A4 (en) 2004-09-03 2005-08-31 Method for forming powder in powder metallurgy and method for producing sintered parts

Country Status (3)

Country Link
US (1) US20070248483A1 (en)
EP (1) EP1792677A4 (en)
WO (1) WO2006025432A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7799111B2 (en) 2005-03-28 2010-09-21 Sulzer Metco Venture Llc Thermal spray feedstock composition
WO2007108793A1 (en) 2006-03-20 2007-09-27 Sulzer Metco Venture, Llc Method for forming a ceramic containing composite structure
EP2047149B1 (en) 2006-05-26 2015-08-12 Sulzer Metco (US) Inc. Mechanical seals and method of manufacture

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1223474A2 (en) * 2001-01-12 2002-07-17 Nof Corporation Ester wax and toner using the wax
US20030161752A1 (en) * 2002-01-25 2003-08-28 Sydney Luk Powder metallurgy lubricant compositions and methods for using the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2733868B2 (en) * 1990-09-25 1998-03-30 日立粉末冶金株式会社 Molding lubricant for powder metallurgy
US5258151A (en) * 1991-06-01 1993-11-02 Hoechst Aktiengesellschaft Molding composition for the production of inorganic sintered products
SE9401922D0 (en) * 1994-06-02 1994-06-02 Hoeganaes Ab Lubricant for metal powder compositions, metal powder composition containing th lubricant, method for making sintered products using the lubricant, and the use of same
US6316393B1 (en) * 1998-11-04 2001-11-13 National Research Council Of Canada Modified lubricated ferrous powder compositions for cold and warm pressing applications
JP4507348B2 (en) * 2000-04-06 2010-07-21 Ｊｆｅスチール株式会社 High-density iron-based powder molded body and method for producing high-density iron-based sintered body
JP4352559B2 (en) * 2000-02-23 2009-10-28 Ｊｆｅスチール株式会社 Method for producing metal powder compact
JP4228547B2 (en) * 2000-03-28 2009-02-25 Ｊｆｅスチール株式会社 Lubricant for mold lubrication and method for producing high-density iron-based powder compact
JP3882545B2 (en) * 2000-11-13 2007-02-21 住友金属鉱山株式会社 High weather-resistant magnet powder and magnet using the same
JP2004059744A (en) * 2002-07-29 2004-02-26 Nof Corp Additive for processing thermoplastic resin

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1223474A2 (en) * 2001-01-12 2002-07-17 Nof Corporation Ester wax and toner using the wax
US20030161752A1 (en) * 2002-01-25 2003-08-28 Sydney Luk Powder metallurgy lubricant compositions and methods for using the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006025432A1 *

Also Published As

Publication number Publication date
US20070248483A1 (en) 2007-10-25
EP1792677A1 (en) 2007-06-06
WO2006025432A1 (en) 2006-03-09

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