The surface treatment of aluminum is a series of mechanical and chemical surface pretreatment processes in the process of surface film processing and combination. The surface pretreatment methods of aluminum are mechanical and chemical (or electrochemical). Mechanical methods include sand blasting, polishing, striping and polishing. The chemical method includes degreasing, alkali washing, light treatment and so on. The surface coating technology of aluminum mainly includes anodic oxidation, chemical transformation, electroplating, electroless plating and organic coating.
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