发明授权
- 专利标题: Zinc-nickel phosphate conversion coating composition and process
- 专利标题(中): 锌 - 镍磷酸盐转化涂层组成及工艺
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申请号: US412063申请日: 1989-09-25
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公开(公告)号: US5000799A公开(公告)日: 1991-03-19
- 发明人: Toshi Miyawaki
- 申请人: Toshi Miyawaki
- 申请人地址: JPX Tokyo
- 专利权人: Nihon Parkerizing Co., Ltd.
- 当前专利权人: Nihon Parkerizing Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX63-241577 19880927
- 主分类号: C23C22/12
- IPC分类号: C23C22/12 ; C23C22/17 ; C23C22/18 ; C23C22/36
摘要:
The operation of zinc-nickel phosphate conversion coating of active metals is improved by using phosphating solutions containing formic acid or formate ions. Such solutions can work effectively at low temperatures and provide excellent substrates for paint, particularly that applied by electrodeposition.
公开/授权文献
- US5658668A Electromagnetic steel sheet and a core made therefrom 公开/授权日:1997-08-19
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