Title:
SINTERED SOFT MAGNETIC MEMBER AND METHOD FOR MANUFACTURE THEREOF
Document Type and Number:
WIPO Patent Application WO/2005/093111
Kind Code:
A1
Abstract:
A sintered soft magnetic member exhibiting uniform distribution of alloy components and having excellent magnetic characteristics which comprises a material having a chemical composition, in mass %, that Cr: 2.9 to 7 %, Si: 1.5 to 6.88 % and the balance: Fe and inevitable impurities; and a method for manufacturing the above sintered soft magnetic member which comprises providing an Fe alloy powder having a chemical composition, in mass %, that Cr: 3 to 7 %, Si: 2 to 3.5 % and the balance: Fe and inevitable impurities, or a mixed power prepared by mixing the above Fe alloy powder with 0.1 to 3.5 mass % of an Si powder having an average particle diameter of 1 to 45 μm, forming the mixed powder into a green compact having a desired shape, and sintering the green compact.
Inventors:
ISHIHARA CHIO (JP)
ASAKA KAZUO (JP)
ASAKA KAZUO (JP)
Application Number:
PCT/JP2005/005813
Publication Date:
October 06, 2005
Filing Date:
March 29, 2005
Export Citation:
Assignee:
HITACHI POWDERED METALS (JP)
ISHIHARA CHIO (JP)
ASAKA KAZUO (JP)
ISHIHARA CHIO (JP)
ASAKA KAZUO (JP)
International Classes:
B22F1/10; B22F1/142; C22C33/02; C22C38/00; H01F1/14; H01F1/22; (IPC1-7): C22C33/02; B22F1/00; C22C38/00; H01F1/14; H01F1/22
Foreign References:
| JPH07179983A | 1995-07-18 | |||
| JPS55113803A | 1980-09-02 |
Other References:
See also references of EP 1734141A4
Attorney, Agent or Firm:
Suenari, Mikio (6-13 Kyobashi 1-chom, Chuo-ku Tokyo, JP)
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