发明名称 |
Method for developing an enhanced oxide coating on a component formed from stainless steel or nickel alloy steel |
摘要 |
A method for creating an oxide coating on the surface of a component formed from austenitic stainless steel or nickel alloy steel is set forth. The component has a naturally formed oxide film at the surface. The naturally formed oxide is enhanced through a process comprising at least two steps. In the first step, the component is heated in the presence of circulating dry air for a first period of time at a temperature of approximately 300 degrees centigrade. In the second step, the component is heated in the presence of static dry air at an elevated pressure for a second period of time at a temperature that is higher than the temperature during the first period. The exterior portion of the enhanced oxide coating is removed with an oxidizing treatment whereby an oxide coating having a high ratio of chromium to iron is exposed at the surface of the stainless steel.
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申请公布号 |
US5985048(A) |
申请公布日期 |
1999.11.16 |
申请号 |
US19980056287 |
申请日期 |
1998.04.07 |
申请人 |
SEMITOOL, INC. |
发明人 |
WAHLERT, RAYMOND W.;TUTHILL, ARTHUR H. |
分类号 |
C23C8/02;C23C8/10;C23C8/14;C23C8/16;C23C8/18;C23C8/80;C23C22/06;C23C22/08;(IPC1-7):C23C22/82 |
主分类号 |
C23C8/02 |
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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