Title:
PROCESS FOR PRODUCING METALLURGICAL POWDER, PROCESS FOR PRODUCING POWDER MAGNETIC CORE, POWDER MAGNETIC CORE, AND COIL COMPONENT
Document Type and Number:
WIPO Patent Application WO/2010/084812
Kind Code:
A1
Abstract:
Disclosed is a process for producing a metallurgical powder, which comprises the steps of: coating the surfaces of a plurality of first particles (10) with a first binder (30); and coating the surface of the first binder (30) with a plurality of second particles (20) having smaller particle sizes than those of the first particles (10). In the step of coating with the second particles (20), the particle diameter of each of the plurality of second particles (20) to be used is one-fifth of the particle diameter of each of the first particles (10) or smaller.
Inventors:
MAEDA TORU (JP)
SAKAMOTO TOSHIHIRO (JP)
WATANABE ASAKO (JP)
SAKAMOTO TOSHIHIRO (JP)
WATANABE ASAKO (JP)
Application Number:
PCT/JP2010/050320
Publication Date:
July 29, 2010
Filing Date:
January 14, 2010
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
MAEDA TORU (JP)
SAKAMOTO TOSHIHIRO (JP)
WATANABE ASAKO (JP)
MAEDA TORU (JP)
SAKAMOTO TOSHIHIRO (JP)
WATANABE ASAKO (JP)
International Classes:
B22F1/102; B22F1/16; B22F3/00; H01F41/02; H01F1/26
Domestic Patent References:
| WO2003085684A1 | 2003-10-16 |
Foreign References:
| JP2000077221A | 2000-03-14 | |||
| JP2006283166A | 2006-10-19 |
Attorney, Agent or Firm:
NAKATA, Motomi et al. (JP)
Nakada Motoki (JP)
Nakada Motoki (JP)
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