Wire and cable commonly used copper and aluminum rods, at room temperature, the use of wire drawing machine through one or several drawing mold holes, so that its section is reduced, the length is increased, the strength is increased. Wire drawing is the first process of each wire and cable company, and the main process parameter of wire drawing is die matching technology.

1, wire drawing: metal rod under a certain tensile force, through a series of holes with gradually smaller apertures, resulting in a smaller section and increased length of plastic deformation process. Simply speaking, wire drawing is the stretching of metal wire under the same volume.

Regular stranding can be divided into regular concentric single strand stranding and regular concentric strand stranding regular concentric single strand stranding:

The extrusion process includes insulation and sheathing production. The insulation production methods are: coating, wrapping, extrusion, and their combination. At present, the main insulation production is coating (winding wire, no longer within the scope of production license management) and extrusion (wire and cable).

The extrusion process includes insulation and sheathing production. The insulation production methods are: coating, wrapping, extrusion, and their combination. At present, the main insulation production is coating (winding wire, no longer within the scope of production license management) and extrusion (wire and cable).

It is mainly to protect cable insulation from light, heat, rays, various acid and alkali gas erosion, and not to be damaged by external forces. It plays the role of strengthening mechanical strength.