JPS57188601A - Strengthening method for green compact in powder metallurgy - Google Patents

Strengthening method for green compact in powder metallurgy

Info

Publication number
JPS57188601A
JPS57188601A JP56073577A JP7357781A JPS57188601A JP S57188601 A JPS57188601 A JP S57188601A JP 56073577 A JP56073577 A JP 56073577A JP 7357781 A JP7357781 A JP 7357781A JP S57188601 A JPS57188601 A JP S57188601A
Authority
JP
Japan
Prior art keywords
green compact
metallic soap
temps
metallic
powder metallurgy
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
JP56073577A
Other languages
Japanese (ja)
Other versions
JPS6111282B2 (en
Inventor
Hiroyuki Endo
Hiroshi Ikenoue
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
Priority to JP56073577A priority Critical patent/JPS57188601A/en
Publication of JPS57188601A publication Critical patent/JPS57188601A/en
Publication of JPS6111282B2 publication Critical patent/JPS6111282B2/ja
Granted 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
    • 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

Landscapes

  • Powder Metallurgy (AREA)

Abstract

PURPOSE:To strengthen green compact and to prevent its chipping by molding metallic powder added with metallic soap as a lubricant for formation by compression to a required shape, heating the same to temps. higher than the m.p. of the metallic soap and allowing the same to restore the ordinary temp. CONSTITUTION:Metallic soap, for example, lead stearate, calcium stearate or the like is added as a lubricant for molding at about 0.5% to the metallic powder. This mixture is molded by compression and the resultant green compact is heated to temps. higher than the m.p. of the metallic soap and lower than the dewaxing temp. After it is held for about 10min at these temps., it is allowed to restore the ordinary temp. The metallic soap in the holes existing internally in the green compact is melted by the heat treatment and the continuous layers are formed and solidified, whereby the strength of the green compact is improved.
JP56073577A 1981-05-18 1981-05-18 Strengthening method for green compact in powder metallurgy Granted JPS57188601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56073577A JPS57188601A (en) 1981-05-18 1981-05-18 Strengthening method for green compact in powder metallurgy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56073577A JPS57188601A (en) 1981-05-18 1981-05-18 Strengthening method for green compact in powder metallurgy

Publications (2)

Publication Number Publication Date
JPS57188601A true JPS57188601A (en) 1982-11-19
JPS6111282B2 JPS6111282B2 (en) 1986-04-02

Family

ID=13522279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56073577A Granted JPS57188601A (en) 1981-05-18 1981-05-18 Strengthening method for green compact in powder metallurgy

Country Status (1)

Country Link
JP (1) JPS57188601A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5799386A (en) * 1994-10-24 1998-09-01 Ivoclar Ag Process of making metal castings
JP2009167479A (en) * 2008-01-17 2009-07-30 Sumitomo Electric Sintered Alloy Ltd Method for collecting powder green compact
CN112437965A (en) * 2018-07-04 2021-03-02 住友电气工业株式会社 Method for manufacturing dust core

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015098407A1 (en) 2013-12-26 2015-07-02 Ntn株式会社 Machine component using powder compact and method for producing same
WO2018088392A1 (en) * 2016-11-09 2018-05-17 Tdk株式会社 Method for producing rare earth magnet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5799386A (en) * 1994-10-24 1998-09-01 Ivoclar Ag Process of making metal castings
JP2009167479A (en) * 2008-01-17 2009-07-30 Sumitomo Electric Sintered Alloy Ltd Method for collecting powder green compact
CN112437965A (en) * 2018-07-04 2021-03-02 住友电气工业株式会社 Method for manufacturing dust core
CN112437965B (en) * 2018-07-04 2022-07-22 住友电气工业株式会社 Method for manufacturing dust core

Also Published As

Publication number Publication date
JPS6111282B2 (en) 1986-04-02

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