ZN-831 alkaline cyanide-free bright zinc plating process is suitable for both rack and barrel plating, as well as continuous plating processes, and even complex workpieces are easy to electroplate. The zinc plating process has a wide operating range and is suitable for electroplating large areas and complex workpieces. The coating has good ductility and is bubble-free. The brightness of the zinc coating is uniform and easy to passivate. It has excellent throwing power, and the waste water from the plating solution is easy to treat.