What are the common materials for harness sleeves?

In the basic composition of the wire harness, the casing plays an important role in the insulation, flame retardant, abrasion resistance, anti-interference and marking, and is an important component of the wire harness product. If there is a problem with the casing, not only the entire wiring harness will be scrapped, but serious accidents of personnel and equipment will occur in serious cases. Due to the importance of the casing, the material selection of the casing must be very cautious. The wire harness factory below takes you through the three materials commonly used in casing.

1. Polyethylene, referred to as PE, it is a polymer of ethylene, non-toxic. Easy to color, good chemical stability, cold resistance, radiation resistance, electrical insulation. It is suitable for packaging materials for food and medicine, making utensils, medical equipment, and insulating materials for the electronics industry.

2. Polyvinyl chloride, referred to as PVC, is a polymer of vinyl chloride. It has good chemical stability and is resistant to acid, alkali and some chemicals. It is resistant to moisture, aging and flame retardant. It should not exceed 60 ° C when used and will harden at low temperatures. Polyvinyl chloride is divided into soft plastic and hard plastic. The soft type is mainly made into a film, which is used as a packaging material, a rainproof article, an agricultural seedling film, etc., and can also be used as an insulating layer of a cable or a wire, and an artificial leather product. Rigid, generally made of tubing and sheeting, used as a water pipe and transporting corrosion resistant fluid pipes, which are used as linings and floors for various tanks.

3. Cross-linked polyethylene, also called XLPE is an important technology to improve PE performance. The cross-linked modified PE can greatly improve its performance, not only significantly improving the mechanical properties of PE, environmental stress cracking resistance, chemical corrosion resistance, creep resistance and electrical properties, but also The temperature resistance level is obviously increased, and the heat resistance temperature of PE can be increased from 70 ° C to over 90 ° C, thereby greatly expanding the application range of PE.