Title:
RARE EARTH MAGNETIC MATERIAL AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JPH04318152
Kind Code:
A
Abstract:
PURPOSE: To provide a rare earth magnetic material having magnetic characteristics equivalent to Nd-Fe-B system permanent magnet and keeping excellent temp. characteristics better than the above magnet even when it does not contain hydrogen.
CONSTITUTION: Metallic alloy power essentially consisting of a rare earth metal(R) and Fe or rare earth metal(R), Fe and Co is manufactured, and this metallic alloy powder is allowed to contact with cementating gas at 600-1200°C to form a rare earth magnetic material consisting of 5-15% Sm-5-25% C - the balance Fe or 5-15% Sm-5-25% C-1-40% Co - the balance Fe.
Inventors:
KAWASAKI MASAHITO
SUZUKI TOSHIHARU
SUZUKI TOSHIHARU
Application Number:
JP11260191A
Publication Date:
November 09, 1992
Filing Date:
April 17, 1991
Export Citation:
Assignee:
MINEBEA CO LTD
International Classes:
B22F9/04; C22C33/02; C22C38/00; H01F1/053; H01F1/058; B22F1/00; (IPC1-7): B22F1/00; B22F9/04; C22C33/02; C22C38/00; H01F1/053
Attorney, Agent or Firm:
Nobuo Kaida (2 outside)