发明名称 |
Surface treating ferrous metals - with molten salt bath contg carbonate, cyanate, lithium, potassium, and sodium ions |
摘要 |
<p>Ferrous metal articles are treated in order to introduce into their surface layers N and C opt. together with S and P by immersing the articles in a molten salt bath contg. (I) CO3-- and CNO- ions, and (II) L2+ and K+ and/or Na+ ions. Improves the resistance of the articles to abrasion and seizure. The surface layers are non-porous.</p> |
申请公布号 |
FR2208004(A1) |
申请公布日期 |
1974.06.21 |
申请号 |
FR19720042350 |
申请日期 |
1972.11.29 |
申请人 |
CTRE STEPHANOIS RECHERC,FR |
发明人 |
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分类号 |
C23C8/40;C23C8/52;C23C8/54;C23C8/58;F16C33/12;(IPC1-7):23C9/00 |
主分类号 |
C23C8/40 |
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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