Vacuum electroplating mainly includes several types of vacuum evaporation, sputtering and ion plating. They are all used to deposit various metal and non-metal films on the surface of plastic parts through distillation or sputtering under vacuum conditions. The method can obtain a very thin surface coating, and at the same time has the outstanding advantages of fast speed and good adhesion, but the price is also higher, and there are fewer types of metals that can be operated. It is generally used as a functional coating for higher-end products, such as The internal shielding layer is used.
So far, many heavy metals can be deposited from aqueous solutions by electroless copper plating. From an economic point of view, the cost of electroless copper plating is low, so it is widely used. The electroless copper layer is copper-red in appearance and cannot be used as a decorative and protective layer. It is usually used as a conductive layer for electroplating thickening plating such as non-metallic, printed circuit board hole metalization, etc. Electroless copper plating can only coat a layer of conductive power on plastic parts, and the plating layer is very thin. If you want to thicken other plating layers, you must first thicken the electroless copper plating layer with electroplated copper. For copper electroplating, acid copper plating or alkaline copper plating can be used. After the plastic parts are electroplated with copper, they can continue to be electroplated with other metal coatings as needed
