发明名称 |
Method for forming a carbide layer on the surface of a ferrous alloy article or a cemented carbide article. |
摘要 |
<p>A method for forming a carbide layer on the surface of a carbon-containing ferrous alloy article or a cemented carbide article in a molten treating bath. The bath is prepared by introducing 5 to 20% by weight of alumina into molten boric acid or borate bath and a carbide-forming element dissolved therein. By employing the treating bath of this invention, the life of the bath can be remarkably improved, and no sintered substance of undissolved carbide-forming element is produced in the treating bath. Further, it is possible to reduce markedly the corrosion of the article and of the vessel holding the bath.</p> |
申请公布号 |
EP0063386(A1) |
申请公布日期 |
1982.10.27 |
申请号 |
EP19820103324 |
申请日期 |
1982.04.20 |
申请人 |
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO |
发明人 |
ARAI, TOHRU;FUJITA, HIRONORI;TAKADA, YASUO |
分类号 |
C23C8/44;C23C10/24;(IPC1-7):23C9/10;04B41/00 |
主分类号 |
C23C8/44 |
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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