Title:
METHOD OF PRODUCING MAGNETIC METAL POWDER
Document Type and Number:
WIPO Patent Application WO/1998/045073
Kind Code:
A1
Abstract:
A method of efficiently producing, on an industrial scale, a magnetic metal powder exhibiting excellent magnetic characteristics while preventing the shape change of skeletal particles in the production stage and mutual sintering of the skeletal particles and while keeping the form of granules. Specifically, a method of producing a magnetic metal powder by thermally reducing granules of an iron compound powder in the presence of a reducing gas, comprising putting the granules on a transfer container having a construction capable of allowing the passage of the gas, conveying the container into a thermal reduction furnace, and thermally reducing the granules in the presence of the reducing gas.
Inventors:
HAMA YOSHINORI (JP)
ARITA SHUNJI (JP)
ARIKITA SHUHEI (JP)
ARITA SHUNJI (JP)
ARIKITA SHUHEI (JP)
Application Number:
PCT/JP1998/001586
Publication Date:
October 15, 1998
Filing Date:
April 06, 1998
Export Citation:
Assignee:
KAO CORP (JP)
HAMA YOSHINORI (JP)
ARITA SHUNJI (JP)
ARIKITA SHUHEI (JP)
HAMA YOSHINORI (JP)
ARITA SHUNJI (JP)
ARIKITA SHUHEI (JP)
International Classes:
B22F1/00; B22F9/22; G11B5/706; H01F1/06; H01F1/20; (IPC1-7): B22F9/22; B22F1/02; H01F1/06; H01F1/20
Foreign References:
| JPH06172821A | 1994-06-21 | |||
| JPS59125936U | 1984-08-24 | |||
| JPH08157911A | 1996-06-18 |
Attorney, Agent or Firm:
Hosoda, Yoshinori (Otemae M2 Building 8-1, Tanimachi 2-chome, Chuo-k, Osaka-shi Osaka, JP)
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