Plating solution formula of copper wire tin plating process and copper wire tin plating process

The invention relates to the electric plating technical field, in particular to a bath formula for a copper wire tin plating process and the copper wire tin plating process completely utilizing the bath formula. In order to be differentiated from the conventional hot tinning, the invention is called the copper wire cold tinning according to the industry habit. Due to the adoption of the technical proposal of the invention, the tinning can be continuously completed without breaking copper wires, and the operation is simple, labor resources are saved and the production efficiency is high; moreover, the production speed of tinning copper wires are in line with the running speed of copper wires, which means that copper wires pass through the production line and immediately become tinning copper wires; the tinning copper wires made by the invention also have the advantages of uniform coating and compact structure, perfect performance; tin materials also belong to environment friendly materials ...