Plastic wire and cable main insulation material and protective material is plastic. Thermoplastic has superior performance and good processing performance, especially for wire and cable extrusion insulation and protective layer production process is simple.

In the extrusion process, due to the rotation of the screw, the plastic is pushed, and the barrel is not moving, which produces a relative motion between the barrel and the screw, and this relative motion has a friction effect on the plastic, so that the plastic is dragged forward.

The screw is one of the key parts in the extruder. The screw not only plays the role of conveying material, but also plays an extremely important role in the extrusion plasticization and molding of the material. Therefore, reasonable selection of screw can obtain ideal quality and yield. The screw of the extruder and the screw of the extruder are much the same in principle. However, the screw of the extruder is stricter than the requirements of the extruder.

Mold core, mold sleeve is extruded molding mold, mold core fixed on the mold core base, its role is to fix and support the core or cable core, so that the plastic into a ring, and in a certain direction into the mold sleeve, by adjusting the mold core seat bolt to adjust the relative position of the mold core set. The mold cover is fixed on the machine head by means of the mold cover, and the function of the mold cover is to make the plastic enter the hole through the gap formed by the inner con

The main wire and cable products used in the power system are bare overhead wires, bus bars (busbars), power cables (plastic cables, oil-paper force cables (basically replaced by plastic power cables), rubber sheath cables, overhead insulated cables), branch cables (replacing some bus bars), electromagnetic cables, and electrical equipment wires and cables for power equipment.

Bare wire and bare conductor products refer to conductive wire without insulation and sheath, mainly including bare single wire, bare stranded wire and profile three series of products.