Title:
R-FE-CO-B-C BONDED MAGNET WITH EXCELLENT OXIDATION RESISTANT PROPERTY
Document Type and Number:
Japanese Patent JPH04268704
Kind Code:
A
Abstract:
PURPOSE: To improve oxidation-resistant property of an R(rare-earth element)-Fe- Co-B magnet.
CONSTITUTION: The title R-Fe-Co-B-C bonded magnet is composed of the magnetic alloy powder, which is covered by an oxidation-resistant protective film containing R-Fe-Co-B-C alloy powder (provided that R indicates at least one of rare earth elements including Y) containing magnetic crystal particles of 16wt.% or less (0wt.% is not included) and Co of 30 wt.% or less (0wt.% is not included), and resin component of 50% or less in volume ratio.
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Inventors:
UEDA TOSHIO
KUNO SEIICHI
KUNO SEIICHI
Application Number:
JP5044591A
Publication Date:
September 24, 1992
Filing Date:
February 24, 1991
Export Citation:
Assignee:
DOWA MINING CO
International Classes:
C22C33/02; H01F1/053; H01F1/058; H01F1/08; (IPC1-7): C22C33/02; H01F1/053; H01F1/08
Attorney, Agent or Firm:
Kenji Wada