Hot-dip galvanizing: Since zinc chloride can melt metal oxides at high temperatures, it is used as a solvent. In the hot-dip galvanizing process, it is generally mixed with ammonium chloride to form a plating flux. The main components of the plating flux are general.  It is: 60-40% zinc chloride, 40-60% ammonium chloride water diluent.The allowable concentration is 150-500g/L, and the Baume ratio Be is 10-35.  Different component ratios should be used according to different steel parts.  When the concentration is less than 150g/L, plating leakage is likely to occur.
Zinc electroplating: used as a zinc ion additive for ammonium salt zinc plating in the electroplating industry. Zinc chloride is the main salt of acidic zinc plating solution. It increases the concentration of zinc chloride. The coating in the high current density area is not easy to scorch and can increase the current.  The upper limit of density.