铝合金进行涂刷之前,要进行表面处理。表面处理剂是以锆、铝、硼等的氟络合物和氢氟酸为主体加有少量有机酸、磷酸及铵盐等的强酸性溶液。处理时,溶液中的氢氟酸不断的形成氟铝络合物而减少,同时,原有的锆、铝、硼的氟络合物不断的离解出 F~- Aluminum brushing before, to be surface treatment. Surface treatment agent is zirconium, aluminum, boron and other fluoride complexes and hydrofluoric acid as the main plus a small amount of organic acids, phosphoric acid and ammonium salts and other strong acidic solution. During the treatment, the hydrofluoric acid in the solution continuously reduces the amount of the fluoroaluminum complex, meanwhile, the original fluorine complex of zirconium, aluminum and boron continuously dissociates from the F ~