| 摘要 |
PURPOSE: An aluminum surface coating method for an exterior of a vehicle is provided to add a transparency electric coating process after an aluminum anodizing process is completed, thereby improving corrosion resistance and alkali resistance. CONSTITUTION: An aluminum surface coating method for an exterior of a vehicle comprises following steps of: cutting aluminum in a fixed size(S1); forming an oxide film on the surface of the cut aluminum through an anodizing process(S2); washing the aluminum which is formed with the oxide film on the surface(S3); coating the washed aluminum by electric coating(S4); and drying the coated aluminum(S5). [Reference numerals] (12) Degreasing process; (14) Electrolytic polishing process; (16) Neutralizing process; (20) Anodizing process; (32,52) Washing process; (34) Hot-water rinsing process; (36) Pure-water rinsing process; (42) Electro-plating process; (54) Water drying process; (56) Drying process
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