发明授权
- 专利标题： Method for the surface treatment of an iron or iron alloy article
- 专利标题（中）： 铁或铁合金制品的表面处理方法
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申请号： US80828申请日： 1987-07-24
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公开(公告)号： US4818351A公开(公告)日： 1989-04-04
- 发明人: Tohru Arai , Hironori Fujita , Yoshihiko Sugimoto , Yukio Ohta , Shigeo Moriyama , Akira Sato
- 申请人： Tohru Arai , Hironori Fujita , Yoshihiko Sugimoto , Yukio Ohta , Shigeo Moriyama , Akira Sato
- 申请人地址： JPX
- 专利权人： Kabushiki Kaisha Toyota Chuo Kenkyusho
- 当前专利权人： Kabushiki Kaisha Toyota Chuo Kenkyusho
- 当前专利权人地址： JPX
- 优先权： JPX61-179239 19860730; JPX61-269220 19861112
- 主分类号： C23C12/02
- IPC分类号： C23C12/02 ; C23C8/32
摘要：
A surface layer which is composed of the carbonitride of at least one of vanadium and chromium is formed on an article made of iron or an iron alloy if the article, a material containing at least one of vanadium and chromium and a treating agent are heated together. The treating agent may be composed of at least one of the cyanides and cyanates of alkali metals and alkaline earth metals. The layer adhering closely to the article can be formed efficiently at a temperature which is so low that virtually no thermal strain may develop in the article.
公开/授权文献
- USD417122S Handle for utensils 公开/授权日：1999-11-30
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