[CHINA ALUMINUM NETWORK] The present invention provides an aluminum wheel non-cyanide copper plating bath and a plating method thereof. The aluminum wheel non-cyanide copper plating electrolyte is characterized in that it contains 180-220g/L copper sulfate, 30-80mL/L sulfuric acid, 80-160ppm chloride ion, 5.0-10.0mL/L cylinder-opening agent UM, 0.4 ~ 0.6 mL/L of Filler UA, 0.4 to 0.6 mL/L of Brightener UB and water. The electroplating method includes immersing an aluminum hub workpiece in a cyanide-free zinc-immersed zinc solution to generate a zinc layer on the surface of the aluminum hub workpiece, and then placing it as a cathode in a cyanide-free copper plating bath to phosphor bronze. As the anode, the surface of the aluminum hub workpiece is plated with copper. The invention has the advantages of rapid deposition speed, high degree of plating filling, difficult pinholes, low internal stress, rich ductility, and no environmental pollution.
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