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Patent Searching and Data


Title:
MANUFACTURE OF RAW MATERIAL POWDER FOR PERMANENT MAGNET
Document Type and Number:
Japanese Patent JPH10125517
Kind Code:
A
Abstract:

To provide a method for manufacturing raw material powder for a permanent magnet which is easily manufactured and excellent in magnetic characteristics.

In this method for manufacturing raw material powder, after acicular iron powder is compression molded under presence of a magnetic field, the compression molded material is burned in a non-oxidizing gas atmosphere at 800-1000°C, and then the obtained burned material is pulverized and mixed with fine powder of magnetic characteristics improving component, and the mixture is burned at 500-600°C while it is made to flow by argon gas, hydrogen gas or nitrogen gas.


Inventors:
SEKINE SHIGENOBU
SATO KOJI
Application Number:
JP28193096A
Publication Date:
May 15, 1998
Filing Date:
October 24, 1996
Export Citation:
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Assignee:
SANEI KASEI KK
International Classes:
B22F9/04; B22F1/00; B22F9/00; H01F1/06; (IPC1-7): H01F1/06; B22F1/00; B22F9/04
Attorney, Agent or Firm:
Shoji Aoma