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

high quality powder coating line,powder coating factory,high quality pretreatment, www.coating-equipment.com Hebei Hanna technology co ltd

Aluminum profile spraying equipment -- pretreatment system 1, The advanced oil removal and demulsification technology is used to realize synchronous processing and synchronous utilization, so as to avoid the two pollution of the workpiece. So that the aluminum profile can get better quality and exte

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