Publish Time: 2023-11-23 Origin: Site
The wrapping of an Automotive wiring harness can play the role of abrasion resistance, flame retardant, corrosion resistance, noise reduction, and so on. Next, let us learn the relevant information about the bandaging design of the Automotive wiring harness. Here are some answers.
Here is the content list:
Bandaging design.
Performance analysis of raw materials for Bandaging.
Generally, the corresponding dressing design plan is made according to the working environment and the size of the space. The automotive wiring harness of the engine works in a harsh environment and should be wrapped with a corrugated tube with high flame retardancy, water resistance, and high mechanical strength. The instrument cable has a relatively small working space and a relatively good environment, so it can be completely wrapped with adhesive tape. The door line and the roofline have a small working space and can be completely wrapped with tape, and some can be wrapped with industrial plastic cloth; the thinner roofline can be directly glued to the car body with sponge tape.
The first type is bellows. Corrugated pipes generally account for about 60%, or even more, in Automotive wiring harness wrapping. The main feature is good to wear resistance, high-temperature resistance, flame retardancy, and heat resistance in high-temperature areas. Its material is divided into two kinds: PP and PA. PA material is better than PP material in terms of flame retardancy and wear resistance, but PP material is far stronger than PA material in terms of bending fatigue resistance.
The second type is PVC pipe. The function of PVC pipe is similar to that of bellows. PVC pipes are relatively flexible and resistant to bending deformation, while PVC pipes are generally closed. Therefore, PVC pipe is mainly used for the branch of the Automotive wiring harness to make the transition of the wire smooth. The heat-resistant temperature of PVC pipes is not high, generally below 80℃.
The third type is tape. Adhesive tape plays a role in strapping, wear resistance, insulation, flame retardancy, noise reduction, and marking in Automotive wiring harnesses, and generally accounts for about 30% of the wrapping materials. Automotive wiring harness tapes are generally divided into three types: PVC tape, air flannel tape, and cloth tape. PVC tape has good abrasion resistance and flame retardancy; temperature resistance is around 80℃, and the price is cheaper. The flannel tape has the best wrapping and noise reduction properties, with a temperature resistance of around 105℃; cloth tape has the best abrasion resistance, with a temperature resistance of up to 150℃. The common disadvantages of flannel tape and cloth tapes are poor flame retardancy and high prices.
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