Common metal surface treatment methods and their characteristics: Metal surfaces are inevitably oxidized during various heat treatment, machining, transportation, and storage processes, resulting in a thick and uneven oxide layer. What are the methods commonly used to deal with metal surfaces?

Method 1 of Metal Surface Treatment: Surface treatment before painting In order to remove the various objects (such as oil stains, rust, dust, old paint film, etc.) that attached to the surface of the workpiece, provide a good substrate for coating requirements, ensure the coating film has good corrosion resistance, decorative properties and some special features.