Title:
METHOD FOR MANUFACTURING POWDER OF MAGNETIC IRON ALLOY
Document Type and Number:
Japanese Patent JP2002302702
Kind Code:
A
Abstract:
To pulverize magnetic iron alloy by the use of a hammer mill without changing the particle size distribution with time.
Hammers 12 inside the hammer mill device 10 are formed of hard metal material, such as tungsten carbide, to suppress the wear of the hammers 12. It is desirable to use Re-Fe-B alloy prepared by splat cooling as the iron-base magnetic material and it is also desirable that FSSS average particle size ranges from 10 to 100 μm. The resultant powder is used mainly for sintered magnets and bonded magnets and also applicable to the manufacture of other members.
Inventors:
SHIGEMOTO YASUTAKA
KANEKIYO HIROKAZU
HIROZAWA SATORU
KANEKIYO HIROKAZU
HIROZAWA SATORU
Application Number:
JP2001105508A
Publication Date:
October 18, 2002
Filing Date:
April 04, 2001
Export Citation:
Assignee:
SUMITOMO SPEC METALS
International Classes:
B02C13/04; B02C13/13; B02C13/28; B02C13/282; B22F1/00; B22F3/00; B22F9/04; C22C38/00; H01F1/057; H01F41/02; (IPC1-7): B22F9/04; B02C13/04; B02C13/13; B02C13/28; B02C13/282; B22F1/00; B22F3/00; C22C38/00; H01F41/02
Attorney, Agent or Firm:
Okuda Seiji