发明名称 |
METAL MATERIAL HAVING FORMED THEREON CHROMIUM OXIDE PASSIVE FILM AND METHOD FOR PRODUCING THE SAME, AND PARTS CONTACTING WITH FLUID AND SYSTEM FOR SUPPLYING FLUID AND EXHAUSTING GAS |
摘要 |
<p>The object of the present invention is to form a chromium-oxide film excellent in corrosion resistance without containing an oxide film of other metal onto the optional metallic material. The chromium-oxide passivation film excellent in corrosion resistance without containing the oxide film of other metal can be formed inexpensively and in a short time, and a fluid supplying system for supplying fluid hard in corrosivity in safety is able to be provided. This invention comprises a step of forming the passivation film consisting of a chromium oxide by giving heat treatment in an oxidizing atmosphere after coating chromium on metallic material of which surface roughness (Ra) of a coat surface is not more than 1.5 mu m. <IMAGE></p> |
申请公布号 |
IL144303(D0) |
申请公布日期 |
2002.05.23 |
申请号 |
IL20000144303 |
申请日期 |
2000.01.13 |
申请人 |
TADAHIRO OHMI;FUJIKIN INCORPORATED |
发明人 |
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分类号 |
H01L21/28;C23C8/02;C23C26/00;(IPC1-7):C23C |
主分类号 |
H01L21/28 |
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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