发明名称 |
CORROSION RESISTANT PERMANENT MAGNET AND ITS MANUFACTURING METHOD |
摘要 |
PROBLEM TO BE SOLVED: To improve the abrasion resistance and corrosion resistance having excellent bonding properties onto magnet underneath by forming an Al film in a specific film thickness on a Ti film after the formation of the Ti film in a specific thickness by thin film forming method on the surface of an R-Fe-B base permanent magnet body furthermore forming a TiN film on the Al film. SOLUTION: The surface of an R-Fe-B base magnetic body having main phase which is tetragonal phase is cleaned up by a surface sputtering step using Ar ions. Next, Ti as a target is evaporated to form a Ti film layer in 0.1-3.0μm film thickness on a magnet body surface by arc ion plating process. Next, Al as another target is evaporated to form an Al film layer in 1μm-5μm film thickness on the Ti film layer also by arc ion plating process. Successively, Ti as the target is used to form TiN film layer in 0.5μm-10μm film thickness on the Al film layer. At this time, R represents a rare earth element. |
申请公布号 |
JPH09148112(A) |
申请公布日期 |
1997.06.06 |
申请号 |
JP19960261482 |
申请日期 |
1996.09.09 |
申请人 |
SUMITOMO SPECIAL METALS CO LTD |
发明人 |
SUZUKI MASAKO;KIKUI FUMIAKI |
分类号 |
C22C38/00;C23C14/06;H01F1/053;H01F1/08;H01F7/02;H01F41/02 |
主分类号 |
C22C38/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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