What is the difference between Cyanide-free Alkaline Copper plating Bath and acidic Copper plating solution

- Jun 28, 2018 -

Acid bright copper plating is a decorative copper plating process. At present, there are three copper plating processes: cyanide copper plating, sulfate copper plating and pyrophosphate copper plating. Acid bright copper plating belongs to sulphate copper plating. The characteristics of acid copper plating brightener are as follows: 1. Fast out of light, excellent filling degree, even in low current density area, very high filling level can be obtained. 2, the wide range of current density can be obtained mirror brightness. 3. The specular luminance can be obtained in a wide range of operating temperature ranging from 18 ℃ to 40 ℃. 4. The coating has low internal stress, good ductility and low resistivity, so it can be used in electroplating of various substrate materials. Iron parts, zinc alloy parts, plastic parts and so on also apply. 5. The brightener has high tolerance to impurity, stable performance and easy control. It is generally used for a long period of time (about 800-1000 ampere hours / l) before being treated with activated carbon powder. 6, the deposition speed is fast. At a current density of 4.5 amperes / square decimeter, copper coating can be deposited at 1 micron per minute, thus reducing the electroplating time.

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