METHOD OF MANUFACTURING HIGH-WEATHERABILITY MAGNET POWDER AND PRODUCT OBTAINED THEREBY

摘要

PROBLEM TO BE SOLVED: To provide a method by which iron-based magnetic powder having superior weatherability and high coercivity important in a practical humidity environment and containing a rare-earth element can be manufactured, and to provide high-weatherability magnetic powder obtained by the method, a resin composition for bond magnet containing the powder, and a bond magnet. SOLUTION: In the method in which the magnetic powder is manufactured by pulverizing iron-based magnetic alloy powder containing rear-earth element in an organic solvent, phosphoric acid is added at the time of pulverizing the magnetic alloy powder.