Title: Preparation of Zirconate Chemical Conversion Film on Aluminium Alloy
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:K_2 ZrF_6 3 g/L,polyglycol 2 g/L,phosphoric acid 1 g/L,temperature 35℃.The thickness of conversion film was 2.8μm. The bubbling time was 64 s.The adhesion with paint coating was first class.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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