OXIDATION-RESISTANT RARE-EARTH MAGNET POWDER AND MANUFACTURING METHOD THEREFOR

文件类型：PDF文档
文件大小：105K
PROBLEM TO BE SOLVED : To provide oxidation-resistant rare-earth magnet powder that is useful for producing a rare-earth bond magnet which is excellent in oxidation resistance and exhibits a high magnetic characteristics, and to provide a manufacturing method for the magnet powder. SOLUTION : This oxidation-resistant rare-earth magnet powder has a deposited layer consisting mainly of a pigment on the outermost surface of at least one coating on the surface of the rare-earth magnet powder. To manufacture the oxidation-resistant rare-earth magnet powder, rare-earth magnet powder having at least one coating on its surface and a pigment-containing processing liquid are mixed so that the pigment-containing processing liquid is attached on the outermost surface of the rare-earth magnet powder, and then the rare-earth magnet powder is dried.