1. Acid refluxDescription: Residual chemical liquid corrodes the coating, causing problems such as shedding, bulging, and discoloration.Reason: Products manufactured by ordinary die-casting processes have pores and sand holes at the microscopic level, which provide space for residual chemical liquid
Common surface treatments for aluminum die castings include electrophoresis, plastic spraying, painting, electroplating, and oxidation. These surface treatments can be divided into two categories according to the surface type: the material addition method of adding a metal coating or resin paint lay