1) Aluminum alloy should be used as hanger for electroplating of aluminum parts;
2) All processes of aluminum and aluminum alloy after etching must be carried out quickly. The shorter the interval between processes, the better, so as to avoid re oxidation;
3) The second zinc dipping time should not be too long to avoid excessive corrosion;
4) Wash it with water;
5) During the electroplating process, it is necessary to prevent power failure halfway.