Asl metal phosphating is one of the common measures for metal surface treatment, but in the process of operation, metal phosphating is prone to defects and affect the treatment effect, then metal phosphating often has defects and solutions.1. The phosphating part returns to rust.Cause: The free acid

Metal phosphating is one of the common measures for metal surface treatment. However, in the process of operation, metal phosphating is prone to defects and affects the treatment effect, so metal phosphating often has defects and solutions.1. The phosphating part returns to rust.Cause: The free acid

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The causes and preventive measures of phosphating rust in the pretreatment of the powder coating equipment:The purpose of pretreatment is to remove the oil pollution on the workpiece surface and form a dense phosphating coating to improve the corrosion protection ability of the workpiece, and the el