Title:
The end for powder metallurgy of mixed powder
Document Type and Number:
Japanese Patent JP6262078
Kind Code:
B2
Abstract:
An objective of the present invention is to provide a mixed powder for powder metallurgy that makes it possible to improve mold-filling ability and reduce spread in weight of molded bodies. The mixed powder for powder metallurgy according to the present invention is obtained by mixing a graphite powder with an average particle diameter D50 of 1.0 μm or more to 3.0 μm or less and D90 of 10 μm or less, without adding a binder, with an iron-based powder, while applying a sheer force. The thus obtained mixed powder for powder metallurgy according to the present invention is characterized by including the iron-based powder and the graphite powder present so as to be collected in concave portions of the iron-based powder.
Inventors:
Mitsuhiro Sato
Akagi Nobuaki
Hironori Suzuki
Akagi Nobuaki
Hironori Suzuki
Application Number:
JP2014111418A
Publication Date:
January 17, 2018
Filing Date:
May 29, 2014
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
B22F1/052; B22F1/10; B22F1/12; B22F1/14; B22F1/16
Domestic Patent References:
| JP2012102355A | ||||
| JP2004190051A | ||||
| JP52056060A |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Usami Aya
Masataka Otani
Usami Aya