After all this is done, next is the manufacturing process in different steps:
- 1. Drawing Process: This is the first step in which a wire like copper wire of 8 mm in diameter is taken and is drawn into different gauge wires. The wire is compressed and wires of required shape and size are drawn
- 2. Annealing process:This is the next step in which the drawn wire are kept in electrical furnace for making them annealed soft wires.
- 3. Tinning Process:This is basically the coating process which can be done in two ways:
- Hot Dip Process: The wires are passed through pickled tin and these get coated.
- Electroplating Process: This is more common procedure,separate plants are established for the same, the wires are put in chemical solution and then electric current of required voltage is passed to set the coating on the wire.
- 4.Twisting:After the coating is done the wires are put on twisting machines to get the required shape and size. The process is different for glass and tinsel wires. In the case of tinsel wires the reels are placed first on flattening machine and then the wire is put on lapping machine. In the case of glass wires, the bunching is done on bunching machine and then the wires are placed on braiding machine.