Electroplating

Trivalent chromium zinc-nickel alloy provides a uniform coating thickness with excellent coverage. The coating has low internal stress and good ductility, making it suitable for a wide range of current densities. It is ideal for various processed products. The surface characteristics are suitable for high-temperature applications such as engine fasteners, enhancing corrosion resistance, particularly for automotive fasteners made of aluminum.

Zinc-nickel alloy surface treatment minimizes contact corrosion, and the slight chemical potential difference helps delay the corrosion of aluminum materials.

Trivalent chromium electroplating is a fundamental surface treatment process that involves applying a zinc coating to metals, alloys, or other materials. It offers the greatest versatility in product finishes, allowing for various color changes on the surface based on customer requirements, and adds value to the product.

For example, it can enhance the product's surface with a metallic gloss for improved aesthetics, increase the substrate's rust resistance, prevent wear on the substrate, improve conductivity, lubrication, surface strength, heat resistance, weatherability, and prevent carbon or nitriding during heat treatment. Our suppliers for such products include MacDermid, Coventya, Dipsol, Pavco, and Surtec.

The zinc-tin alloy coating has a bright silver-white appearance with a uniform alloy distribution, enhancing its bright and white look. It offers excellent corrosion resistance to saltwater and sulfur dioxide, making it capable of passing stringent weathering tests. Even after stress-induced deformation, such as bending or curling, it can still maintain high corrosion resistance.

In addition, zinc-tin alloy is highly solderable and can be safely used in metal sealing components. It is recyclable, has low environmental impact, and the operation process is simple and safe.

Zinc phosphate is a nickel-phosphate system used for iron and steel. The coating generated by the phosphate system weighs over 2000 milligrams per square foot. Under atmospheric conditions, the surface becomes stable and exhibits excellent corrosion resistance and electrical insulation properties. Additionally, after a sealing treatment, its corrosion resistance is significantly enhanced, improving the phosphate coating's resistance to acids, alkalis, ammonia, seawater, and water vapor. The porous structure formed by the crystalline film provides excellent adsorption properties, which is why it is commonly used as a base layer for paint coatings. On the other hand, it is also used for adsorbing lubricating oil, which helps reduce the friction coefficient and improve lubrication.