Chemical surface treatment: bluing and blackening, phosphating, acid washing, chemical plating of various metals and alloys, TD treatment, QPQ treatment, chemical oxidation, etc.
Electrochemical surface treatment: anodizing, electrochemical polishing, electroplating, etc.
Modern surface treatment: chemical vapor deposition CVD, physical vapor deposition PVD, ion implantation, ion plating, laser surface treatment, etc.
Acid pickling and passivation treatment: refers to immersing metal parts in acid pickling and passivation solution until the surface of the workpiece becomes uniformly silver white to complete the process. It is not only simple to operate, but also cost-effective, and the acid pickling and passivation solution can be repeatedly recycled.
Electrolytic polishing treatment: Technology refers to electrolytic polishing, also known as electrochemical polishing, which is the process of placing a workpiece in an electrified solution to improve the flatness of the metal workpiece surface and produce a glossy finish. Almost all metals can be electrolytically polished, such as stainless steel, carbon steel, titanium, aluminum alloys, copper alloys, nickel alloys, etc., but stainless steel has a wide range of applications. By the synergistic effect of positive and negative current and electrolytic polishing solution, the micro geometric shape of the metal surface is improved and the surface roughness of the metal is reduced. Thus achieving the goal of a bright and smooth surface of the workpiece.
During the processing, transportation, and storage of metal surface treated workpieces in Dalian, the surface often contains oxide scale, rust, mold residue, welding slag, dust, oil, and other contaminants. To ensure that the coating can firmly adhere to the surface of the workpiece, the workpiece surface must be cleaned before painting. Otherwise, it not only affects the adhesion and corrosion resistance between the coating and the metal, but also allows the base metal to continue to corrode even with coating protection, causing the coating to peel off and affecting the mechanical properties and service life of the workpiece. Therefore, surface treatment before painting the workpiece is an important guarantee and measure to obtain a high-quality protective layer and extend the service life of the product.