发明名称 |
Surface treating process, surface treating apparatus, vapor-depositing material, and rare earth metal-based permanent magnet with surface treated |
摘要 |
<p>A surface treating process according to the present invention, a vapor deposited film is formed from an easily oxidizable vapor-depositing material on the surface of a work by evaporating the vapor-depositing material in a state in which the vapor deposition controlling gas has been supplied to at least zones near a melting/evaporating source and the work within a treating chamber. Thus, the vapor deposited film can be formed stably on the surface of a desired work without requirement of a long time for providing a high degree of vacuum and without use of a special apparatus. In addition, the use of the surface treating process ensures that a corrosion resistance can be provided to a rare earth metal-based permanent magnet extremely liable to be oxidized, without degradation of a high magnetic characteristic of the magnet. A surface treating apparatus according to the present invention includes a melting/evaporating source for melting and evaporating a wire-shaped vapor-depositing material containing a vapor deposition controlling gas, and a member for retaining a work on which the vapor-depositing material is deposited. The melting/evaporating source and the work retaining member are disposed in a treating chamber of the surface treating chamber. The apparatus further includes a vapor-depositing material supply means for supplying the wire-shaped vapor-depositing material containing the vapor deposition controlling gas to the melting-evaporating source.</p> |
申请公布号 |
EP1055744(A3) |
申请公布日期 |
2007.07.04 |
申请号 |
EP20000109513 |
申请日期 |
2000.05.04 |
申请人 |
NEOMAX CO., LTD. |
发明人 |
NISHIUCHI, TAKESHI;TOCHISHITA, YOSHIMI;KIKUI, FUMIAKI;KIZAWA, MITSUO |
分类号 |
C23C14/24;C23C14/16;C23C14/22;C23C14/50;H01F7/02;H01F41/02 |
主分类号 |
C23C14/24 |
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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