Mainly used for pre-treatment of metal surfaces to improve the surface quality and anti-corrosion performance of metal materials.

The pickling and phosphating line belongs to the metal pretreatment process,which is mostly used for carbon steel and iron parts.The workpiece is first pickled to remove oxide scale and rust, and then phosphorized to form a layer of phosphate conversion film on the metal surface,which is mainly used as a base for subsequent painting,powder coating and electrophoresis or e coating to enhance the adhesion and corrosion resistance of the coating.