JPS5521574A - Method of manufacturing powder for powder metallurgy - Google Patents

Method of manufacturing powder for powder metallurgy

Info

Publication number
JPS5521574A
JPS5521574A JP9475478A JP9475478A JPS5521574A JP S5521574 A JPS5521574 A JP S5521574A JP 9475478 A JP9475478 A JP 9475478A JP 9475478 A JP9475478 A JP 9475478A JP S5521574 A JPS5521574 A JP S5521574A
Authority
JP
Japan
Prior art keywords
powder
fine particles
graphitized
crushing
pig iron
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
JP9475478A
Other languages
Japanese (ja)
Other versions
JPS6115125B2 (en
Inventor
Yoshinobu Takeda
Atsushi Kuroishi
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
Priority to JP9475478A priority Critical patent/JPS5521574A/en
Publication of JPS5521574A publication Critical patent/JPS5521574A/en
Publication of JPS6115125B2 publication Critical patent/JPS6115125B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

PURPOSE: To manufacture powder metallurgy powder of good powder characteristics and good sintering characteristics by crushing the graphitized cut chips of gray pig iron by impacts, removing fine particles generated and adjusting carbon content in a prescribed range.
CONSTITUTION: After gray pig iron chips are graphitized in N2 gas, the are crushed with a high speed hammer, and fine particles produced by the crushing are removed in a cyclone. Powder thus obtained includes, for example, only 4 weight percent of fine particles under 325 mesh and 1.6 weignt percent of free carbon. The compressibility of this powder is 6.1 g/cc when formed by the pressure of 5 ton/cm2, that is, a 0.2W0.4 g/cc higher value than the compressibility data usually published so far is obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP9475478A 1978-08-03 1978-08-03 Method of manufacturing powder for powder metallurgy Granted JPS5521574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9475478A JPS5521574A (en) 1978-08-03 1978-08-03 Method of manufacturing powder for powder metallurgy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9475478A JPS5521574A (en) 1978-08-03 1978-08-03 Method of manufacturing powder for powder metallurgy

Publications (2)

Publication Number Publication Date
JPS5521574A true JPS5521574A (en) 1980-02-15
JPS6115125B2 JPS6115125B2 (en) 1986-04-22

Family

ID=14118893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9475478A Granted JPS5521574A (en) 1978-08-03 1978-08-03 Method of manufacturing powder for powder metallurgy

Country Status (1)

Country Link
JP (1) JPS5521574A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5993456U (en) * 1982-12-09 1984-06-25 千住金属工業株式会社 sprinkler head deflector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5993456U (en) * 1982-12-09 1984-06-25 千住金属工業株式会社 sprinkler head deflector
JPH0350932Y2 (en) * 1982-12-09 1991-10-30

Also Published As

Publication number Publication date
JPS6115125B2 (en) 1986-04-22

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