Common Cold-pressed Needle Alloy Coatings

In the fastener industry, the surface treatment of female crimp contact involves a variety of alloy coatings. These coatings are formed directly on the metal substrate during the manufacturing process, which helps to extend the overall service life of the components and improve surface properties.

Zinc plating is the most widely used treatment method, including electroplating and mechanical galvanizing. This type of coating is commonly found on male crimp contact steel and produces a zinc-based metal coating to cope with oxidation problems in general working environments. Nickel alloy coatings are also common, forming a uniform nickel alloy layer on the substrate surface through electroplating or electroless plating techniques, which facilitates the interfacial transition between the metal and its surrounding environment.