Rajasthan Electric Industries

The copper wire manufacturing involves several processes which shift directions depending on the kind of wires that need to be manufactured. Various types of copper wires that are manufactured by these processes are flat copper wire, stranded wire, copper wire cables, jumper wire, copper wire gauge, PVC wires, armoured cables, tinsel copper wire and copper strip. The steps involved in the manufacturing of copper wires are:

Drawing Process: A copper rod of some specification is put on several machines to be drawn out into different wire gauges.

Annealing Process: The drawn out wires are immersed in an electric furnace for annealing it with soft wires.

Bunching or Stranding Process: After annealing, the wires are bunched or stranded by some specific meant for that purpose. The machines do not simply turn out identical wires but size specifications are taken into consideration for modifying this process. The next step in this process is nuzzling of these bunched wires for improving its surface.

Tinning Process: Tinning of copper wires is a very special process in the sense that many uses in several industries depend on it for their manufacturing process. This involves two steps those of electroplating and hot dip. In hot dip process, the tin to be used is pickled and through this tin copper wires are made to pass. This gets a coating on the wires. In the electroplating process, the copper wires are made to pass through a chemical bath which is followed by passing of electric current in it. This creates the required coating on it.

Braiding: This is a process through which the copper wires are made to go through after the annealing process. Braided copper wires are produced after twisting them according to the specifications or industry standards.

Tinsel Copper Wire Manufacturing: Fine copper wire gauge is put on flattening machines for the purpose of flattening. The next step in this process is lapping of these wires by nylon threads. Braiding or twisting process mentioned immediately follows this step. These processes of copper wire manufacturing in India are regulated and by various authorities like Institute of Labour Development, State Chamber of Commerce and Ministry of Small-scale Industry of Government of India. These regulatory authorities offer certificate of recognitions or various awards if the copper wire manufacturers do a good job. Considering the significance of copper wires, the manufacturers do a thankless job and these recognitions from government agencies are a welcome step for their motivation.