| 摘要 |
PROBLEM TO BE SOLVED: To increase corrosion-resistant performance by a method wherein metal powders are firmly embedded in a clearance part among magnetic particles of a porous surface structure of a bond magnet and flattened to the same degree as a surface of a magnetic body, and the entire surface is coated with a thin resinous coat layer. SOLUTION: Particles 1 of magnetic powders of a bond magnet have a flat stacked structure with respect to each other along the face, and a plurality of clearance parts 2 exist inside a magnet body and on the face among these particles 1. Soft metal powders are projected into the clearance part 2 on the face of this magnet body. Alternatively, a impact is added by rotation, shaking, oscillation or stirring from outwardly, the metal powders are compressed while filling and coating, a compression body part 3 of metal powders for being filled with the clearance part 2 and the face of the magnet body is flattened. |
