发明授权
- 专利标题： Method of preparing composite aluminum material
- 专利标题（中）： 复合铝材料的制备方法
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申请号： US757876申请日： 1985-07-23
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公开(公告)号： US4643241A公开(公告)日： 1987-02-17
- 发明人: Koji Yonekura , Kenichi Suzuki , Yoshiyasu Takahashi , Hiroaki Iwahori
- 申请人： Koji Yonekura , Kenichi Suzuki , Yoshiyasu Takahashi , Hiroaki Iwahori
- 申请人地址： JPX Aichi
- 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 Aichi
- 优先权： JPX59-156276 19840726
- 主分类号： C23C22/34
- IPC分类号： C23C22/34 ; B22D19/00 ; C25D11/04 ; C25D11/08 ; F01N13/08 ; F01N13/16
摘要：
A method of preparing a composite aluminum material to be formed integrally by bonding aluminum or aluminum alloy to an aluminum or aluminum alloy member which is formed in advance in a specified shape by the method of internal chill, etc. The method comprises the steps of forming a chemical conversion coating of pentafluoroaluminate (K.sub.2 AlF.sub.5) by bringing a solution containing potassium ions and fluorine ions in contact with the surface of the aluminum member.
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