发明申请
- 专利标题: Non-chromium post-treatment for aluminum coated steel
- 专利标题(中): 铝镀层钢的非铬后处理
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申请号: US11268405申请日: 2005-11-01
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公开(公告)号: US20070099022A1公开(公告)日: 2007-05-03
- 发明人: Craig Matzdorf , William Nickerson , James Green , Andrew Schwartz , Kate Horspool
- 申请人: Craig Matzdorf , William Nickerson , James Green , Andrew Schwartz , Kate Horspool
- 专利权人: The U.S. of America as represented by the Secretary of the Navy
- 当前专利权人: The U.S. of America as represented by the Secretary of the Navy
- 主分类号: C23C22/34
- IPC分类号: C23C22/34
摘要:
Compositions and process for post-treating aluminum and aluminum alloy coated steel substrates to improve the corrosion resistance and adhesive bonding strength of the aluminum coated substrates. The composition comprises treating the aluminum or aluminum alloy coated steel substrates with an acidic aqueous solution comprising, per liter of solution, from about 0.1 to 22 grams of a hexafluorozirconate, from about 0.1 gram up to the solubility limit of a water soluble cationic zinc compound and, optionally, effective amounts of water soluble thickeners and/or surfactants.
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