963143-1 Automobile Connector Waterproof Plug Connector Dummy Blind Seal

3.1.2 Performance analysis of raw materials bandaging

a) The proportion of ripple tubes is generally accounting for about 60%or even more. The main characteristics of this product are good abrasion resistance and good at high temperature resistance, flame retardability, and heat resistance in high temperature areas. The temperature resistance of the ripple tube is between -40 ℃ ～ 150 ℃. Its material is generally divided into PP and PA2. PA material is better than PP material in terms of flame retardant and abrasion resistance; but PP material is stronger than PA material in terms of bending fatigue. The ripple tube is divided into: open tubes, closed mouth ripples, zipper -ripples.

b) The function of the PVC tube is similar to the ripple tube. The softness of the PVC tube and the deformation of the bending are better, and the PVC tube is generally closed. Therefore, the PVC pipe is mainly used for the branches of the beam corner to make the wires smooth. The heat -resistant temperature of the PVC tube is not high, generally below 80 ° C.

c) The tape online beam plays a role in binding, wear resistance, insulation, flame retardant, noise reduction, marking, etc., and generally accounts for about 30%of the bandaging materials. Tape beams are generally divided into three types of PVC tape, velvet tape and cloth tape. PVC tape has a good abrasion resistance and flame retardant; temperature resistance is about 80 ° C, the noise reduction is not good, and the price is cheaper. The velvet tape and the 胶 tape material are PET (polyester fiber). The bandaging and noise reduction of the velvet tape is about 105 ° C; the abrasion tape is the best, the temperature resistance is about 150 ° C. The disadvantage of the common in the coexistence of velvet tape and Biki tape is that the flame retardant is not good and the price is expensive.

d) The weaving sleeve online beam bandaging is applied in a high -wear environment. The main feature is that the abrasion resistance is better, which can adapt to the expansion and contraction during the compression of the cable, and can wrap the cable quickly and easily. The softness of the woven sleeve and the deformation of the bending is very good. The material is generally PET, and the temperature resistance is between -40-150 ° C. The disadvantage is expensive.

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