Method for manufacturing coaxial cables

Abstract

The invention relates to the technical field of cables and the manufacturing technique thereof, in particular to a method for manufacturing non-halogen coaxial cables. The method comprises the following steps that, firstly, core wires are prepared, the metal core wires are combined to form a set, and an insulation layer is wrapped on the outer layer of the core wire set through extruding equipment, wherein high density polyethylene materials are adopted in the insulation layer; then a metal braiding layer wrapping the insulation layer is formed outside the insulation layer through a braiding machine; a coating wraps outside the braiding layer through extruding equipment, and thermoplastic polyester elastomer (TPEE) is adopted in the coating; finally; irradiation treatment is carried out on wires coated with the coating to obtain finished products. Through the adoption of the technical scheme, manufactured products have good engineering characteristic, and the performance of high temperature resistance, erosion resistance and aging resistance of the products are improved. Meanwhile, the method for manufacturing the coaxial cables can further simplify production procedures, and reduce production cost.

Description

Technical field: [0001] The invention relates to the technical field of cables and manufacturing techniques thereof, in particular to a halogen-free coaxial cable manufacturing method. Background technique: [0002] Coaxial cable is a widely used data transmission wire at present, which usually includes a core wire, an insulating layer, a braid layer and a coating layer. The core wire is usually composed of one or more copper wires, and its outer coating layer The insulating layer is covered with a metal braiding layer for shielding external signal interference, and the outermost layer is covered with a coating layer to protect the entire wire. [0003] Insulating layers and covering layers in traditional coaxial cables are generally made of insulating polymers, such as PVC, PE, fluorine-containing polymers, etc., all of which have good insulation properties. In the actual use process, the high temperature resistance of various materials should also be considered. For exam...

AI Technical Summary

Problems solved by technology

[0004] So now, if the relevant cable products are to be exported to the EU region, the products must meet the relevant requirements of the EU. At present, some manufacturers have proposed improved technical solutions, but these solutions still have certain deficiencies: First, the current technical solutions Two irradiation treatments are required, that is, the insulating layer and the coating layer need to be irradiated, which leads to the complexity of the production process and increases the production time

Secondly, the covering layer of the current technical solution is made of polyolefin polymer material, which has poor high temperature resistance and softness.