发明名称 |
PROCESS FOR FORMING PASSIVE FILM ON STAINLESS STEEL, AND STAINLESS STEEL AND GAS- AND LIQUID-CONTACTING PART. |
摘要 |
<p>A process for forming a passive film excellent in degasifiability and corrosion resistance by making the film extremely flat and dense. The process comprises subjecting the surface of stainless steel to electrolytic polishing, oxidation in an oxidative atmosphere and removal of iron oxide formed thereon by reduction with hydrogen. <IMAGE></p> |
申请公布号 |
EP0596121(A1) |
申请公布日期 |
1994.05.11 |
申请号 |
EP19920917389 |
申请日期 |
1992.05.28 |
申请人 |
OHMI, TADAHIRO;OSAKA SANSO KOGYO KK |
发明人 |
OHMI, TADAHIRO 1-17-301, KOMEGABUKURO 2-CHOME;NAKAMURA, MASAKAZU, DEPT. OF ELECTRONICS FACULTY |
分类号 |
C21D1/74;C21D1/76;C21D6/00;C23C8/02;C23C8/14;C23C8/80;C23C22/00;C25F3/06;(IPC1-7):C23C8/14 |
主分类号 |
C21D1/74 |
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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