发明授权
- 专利标题: Treatment of chromate coating
- 专利标题(中): 处理铬酸盐涂层
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申请号: US313330申请日: 1989-02-21
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公开(公告)号: US4956027A公开(公告)日: 1990-09-11
- 发明人: Kenshi Saeki , Noriaki Yoshitake , Takayuki Aoki
- 申请人: Kenshi Saeki , Noriaki Yoshitake , Takayuki Aoki
- 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: JPX61-136030 19860613
- 主分类号: C23C22/83
- IPC分类号: C23C22/83
摘要:
An aqueous solution of a reducing agent is applied to a chromate coated metal surface to reduce the extent to which the chromate coating undergoes dissolution during a subsequent cleaning process.