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铝及其铝合金在含有络合剂SB的磷酸-硫酸溶液中进行阳极氧化处理,得到多孔且导电的氧化膜,能够在中性或弱酸性电镀液中直接进行光亮电镀.其镀层结合力好,光亮度高.“,”Aluminium or its alloyS are anodized in mixed solution of sulfuric acid and phosphoric acid, which contains complexing agent SB, they get conduCtive anodic oxidant film with lots of micro-porous on their surface. The film is suitable for bright electroplating directly in weak acid or neutral solution.