The selection of copper-clad steel copper-plating process for pvd coating machine, the particularity of wire processing industry makes its requirements for copper-plating process different from conventional copper-plating steel parts. Therefore, how to choose a copper plating process suitable for wire processing is a very important issue.

       Usually, the basis for choosing the electroplating process of a pvd coating machine is the first requirement of the coating product itself. That is, the product is processed first, and then electroplating. Such as thickness, brightness, hardness and dispersion ability. Some also have requirements for current efficiency and deposition speed. Then look at the pre-plating layer, intermediate coating and surface coating of the required copper plating.
      The characteristic of wire processing pvd coating machine electroplating is that the wire processing process and the electroplating process are sometimes carried out simultaneously. That is, some are first drawn and then plated, and some are first plated and then drawn. Even the electroplating of the finished wire is carried out under the traction of the take-up machine. In addition to the requirements for the coating layer according to the different uses of the wire, the selected process should also consider the adaptability of the electroplater to factors such as the running speed of the wire, the number of traction heads, and the length of the processing line.
       For CO2 gas shielded welding wire, due to the strict limit on the amount of copper attached to the welding wire, for example, the copper content per unit volume should be within 0.52 (mass fraction) of the solder, which is a very thin coating, and the chemical immersion method is used. Replacement copper plating can meet the requirements, but due to the traditional method used in China to replace copper plating, its bonding force and coating color can not meet the product requirements. And in practice, the process of first dip plating and then drawing is adopted, so that the copper layer is extended and thinned during the drawing to meet the product requirements. In this method, the coating layer is often peeled off and the bottom is exposed. Therefore, it is very important to choose a pvd coating machine copper plating process with good bonding force and ductility for gas shielded welding wire.