发明名称 |
ELECTROPLATING METHOD FOR R-Fe-B BASED PERMANENT MAGNET |
摘要 |
PROBLEM TO BE SOLVED: To provide an electroplating method by which R-Fe-B based permanent magnets having plating films exhibiting excellent corrosion resistance even though they are thin can stably be mass-produced. SOLUTION: In this electroplating method in which a plurality of pieces of R-Fe-B based permanent magnets composed of a main phase and a plurality of crystal phases of grain boundary phases having corrosion potential baser than that of the main phase are simultaneously subjected to electroplating, the individual magnets are disposed in a separated state, and film deposition is performed at an average film deposition rate of >=0.1 μm/min from the start of the plating until a plating film with a film thickness of 0.5 μm is deposited on the surfaces of the magnets. |
申请公布号 |
JP2002105690(A) |
申请公布日期 |
2002.04.10 |
申请号 |
JP20000297044 |
申请日期 |
2000.09.28 |
申请人 |
SUMITOMO SPECIAL METALS CO LTD |
发明人 |
NISHIUCHI TAKESHI |
分类号 |
C25D7/00;C25D17/08;C25D21/12;H01F1/053;H01F1/08;H01F10/12;H01F41/02;H01F41/16 |
主分类号 |
C25D7/00 |
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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