JPS5521574A - Method of manufacturing powder for powder metallurgy - Google Patents
Method of manufacturing powder for powder metallurgyInfo
- 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
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
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)
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 |
-
1978
- 1978-08-03 JP JP9475478A patent/JPS5521574A/en active Granted
Cited By (2)
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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