| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hydrogen-embrittlement-proof and highly corrosion-resistant surface treatment on the surface of an R-T-B based rare earth magnet (R stands for at least one rare earth element containing Y, and T stands for Fe, or Fe and Co). <P>SOLUTION: The surface treatment includes: forming an aluminum coating with an aluminum electroplating solution using non-aqueous solvent on the surface of an R-T-B-based rare earth magnet (R stands for at least one rare earth element containing Y, and T stands for Fe, or Fe and Co); and further changing part of the aluminum coating into an oxide film through thermal hydroxidation or anodization; thereby forming a hydrogen-embrittlement-proof and highly corrosion-resistant coating. <P>COPYRIGHT: (C)2009,JPO&INPIT |
