A cold-headed standoff, a class of pointed, nail-ended, threaded parts on small cylindrical or conical metal rods, having a grooved or dimpled head, used alone. Next, Hongrui will tell you about the electroplating of cold heading and riveting studs. Electroplating is the process of plating a thin layer of metal or alloy on the surface of certain metals by using the principle of electrolysis. It is a technology that uses electrolysis to attach a layer of metal film to the surface of metal or other material parts and then It can prevent corrosion, improve wear resistance, conductivity, reflectiveness and enhance beauty. The quality of electroplating of pressure riveting fasteners is mainly measured by its corrosion resistance, followed by appearance. Corrosion resistance is to imitate the working environment of the product, set it as the test condition, and conduct a corrosion test on it.
     The quality of electroplating products is controlled from the following aspects:
1. Appearance: The surface of pressure riveting fastener products is not allowed to have some uncoated, burnt, rough, dull, peeling, crusting and obvious stripes, and pinhole pitting, black slag, and passivation film are not allowed Porosity, cracks, drops and severe passivation marks.
2. Coating thickness: The working life of pressure riveting fasteners in a corrosive atmosphere is directly proportional to its coating thickness. The thickness of the economical electroplating coatin