1. Electroplating of fasteners
The electroplating of fasteners refers to immersing the parts of the fasteners that need to be electroplated in a specific aqueous solution. The aqueous solution will contain some deposited metal compounds, so that after the current passes through the aqueous solution, the metal substances in the solution are precipitated and attached to the surface. on the immersed part of the fastener. Electroplating of fasteners generally includes galvanized, copper, nickel, chromium, copper-nickel alloy, etc.
2. Hot-dip galvanizing of fasteners
The hot-dip galvanizing of fasteners is to immerse the fasteners of carbon steel components into a bath of molten zinc at a temperature of about 510 ° C, so that the iron-zinc alloy on the surface of the fasteners will be converted into passivated zinc, thereby Get a finish.
3. Mechanical plating of fasteners
The mechanical plating of fasteners refers to impacting the surface of the fasteners with the powder of the coating metal through specific physical and chemical means, so that the coating metal forms a coating on the surface of the fasteners through cold welding to reach the surface. processing effect. Mechanical plating of fasteners is mainly applicable to spare parts such as screws, nuts and washers.
