Nickel-plated copper wire is a wire that is plated with a layer of nickel substance on the surface of the copper wire by electrolysis, chemical methods, etc. Compared with pure copper wire, the corrosion resistance, wear resistance and hardness of the nickel-plated copper wire have been greatly improved, which can better meet the application in the subsequent parts and improve the life of the parts. Before nickel plating on copper wire, in order to make the entire coating more uniform and meet the requirements, the copper wire needs to be pre-treated and wire drawing treatment.

What pretreatment should be done before nickel-plated copper wire

Before nickel plating on the copper wire, the dirt on the surface of the copper wire should be removed first, so as to maintain the cleanliness of the copper wire and facilitate subsequent nickel plating treatment. Subsequently, the copper wire should be cleaned with hydrochloric acid solution to remove the oxide film on its surface, so as to better clean up the impurities existing on the surface of the copper wire and lay a good foundation for subsequent nickel plating treatment.

There are several advantages to the treatment of nickel-plated copper wire：

1, after the copper wire is nickel plated, the wire is pulled, which can make the surface of the entire copper wire more smooth, so that the density of the entire coating becomes more uniform. In general, after ordinary nickel-plated copper wire, its entire surface color is not very uniform, and after wire treatment, it can become smooth and bright.

2, increase the output of nickel-plated copper wire, reduce the production cost of enterprises.

3, more conducive to the production of small diameter nickel-plated copper wire. If the copper wire with a relatively fine diameter is plated with nickel directly, it is easier to break the copper wire, and the above problems can be effectively avoided after the wire pulling treatment.