Surface Treatment

Anodizing is an electrolytic oxidation process in which a layer of hard oxide film will be added on the aluminum parts surface to improve wear resistance and decorative function.

Mirror polishing is the process of making a surface smooth through physical friction treatment or chemical solution, which is typically used to prevent corrosion and remove oxidation. After polishing, the surface of the part becomes smoother and brighter.

Phosphorization is a process of chemical and electrochemical reactions to form a phosphate chemical conversion film, which can improve corrosion resistance and adhesion.

Black oxide coating is a conversion coating for ferrous metals, providing a matte black finish. It enhances corrosion resistance, minimizes light reflection, and improves lubrication adherence, without altering dimensions.

Hot-dip galvanizing is one of the most effective rust prevention methods for steel parts, as well as one of the most cost-effective methods. It can effectively block the surface erosion of metal materials by air.

Spraying sand onto the surface of the product under high pressure can remove rust, burrs, blemish and scratch from the surface. It is often used in the early stages of powder coating, painting, or other spraying treatments.

Electroplating includes nickel plating, silver plating, gold plating, zinc plating, chromium plating, tin plating, etc. It is an ideal choice to reduce corrosion, improve appearance and function.

A powder coating is formed on the surface of the workpiece by electrostatic spraying, and then the powder layer is cured by heating and baking to form a uniform film layer. It is usually used for external parts and has multiple colors to choose from.

Spraying painting and powder coating can not only improve the appearance level of products, but also extend their service life. They are two widely used spraying processes.

Electrophoretic coating is a coating method that utilizes an external electric field to cause particles such as pigments and resins suspended in the electrophoretic solution to migrate and deposit onto the substrate surface of one of the electrodes. This is a special coating formation method and the most practical construction process for water-based coatings.

Metal surface passivation involves treating metal with a protective layer, often an oxide, to reduce chemical reactivity and enhance corrosion resistance, thereby prolonging the metal’s lifespan and maintaining its integrity.