铝合金锆酸盐化学转化膜的制备
Preparation of Zirconate Chemical Conversion Film on Aluminium Alloy
摘 要
为了取代铝材铬酸盐化学成膜工艺,用锆酸盐化学处理液处理LY12铝合金,生成无铬的转化膜.测试转化膜厚度、NaOH-甘油点滴液起泡时间及转化膜与漆膜的结合力.通过正交试验和单因素试验得到较优的工艺:K2ZrF6 3 g/L,聚乙二醇2.5 g/L,磷酸1 g/L,温度35 ℃.转化膜厚度2.8 μm,点滴液起泡时间达到64 s,与阴极电泳漆膜的结合力达到一级.
氟锆酸钾
无铬
转化膜
aluminium alloy
fluozirconate
chrome-free
conversion film
Abstract
The conversion film without chromium was prepared on aluminum alloy LY12 in zirconate solution.The coating thickness,bubbling time in NaOH-glycerol dropping solution and adhesion with coating were tested.The zirconate treatment process was optimized by orthogonal experiments and one factor experiments as follows: K2ZrF6 3 g/L,polyglycol 2 g/L,phosphoric acid 1 g/L,temperature 35 ℃.The thickness of conversion film was 2.8 μm.The bubbling time was 64 s.The adhesion with paint coating was first class.
中图分类号 TG178
所属栏目 应用技术
基金项目 辽宁省教育厅实验项目(2008S202)资助
收稿日期 2009/2/28
修改稿日期 2009/5/25
网络出版日期
作者单位点击查看
备注周琦,副教授.
引用该论文: ZHOU Qi,ZHANG Chun-li,ZHANG Guang-sen. Preparation of Zirconate Chemical Conversion Film on Aluminium Alloy[J]. Corrosion & Protection, 2010, 31(2): 158～160
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参考文献
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