15324984 Connector Automotive Sealing Plug Silicon Rubber Waterproof Plug

3) The choice of wire temperature resistance levels according to the working environment temperature of the engine wire beam, and combined with commercial vehicle -level standards, it is required to work for a long time

Temperature -40 ~ 125 ℃. If you have a special environmental environment, you need to choose a special type of wire. For example, when the heating device is working, the radiation temperature around the air intake heating side of the engine reaches more than 200 ° C. You can choose a high temperature resistant wire.

4) Protective material vehicle engine wires are generally bandaged and protective by protective materials such as ripples (Figure 2), PVC pipes (Figure 3), thermal retractable (Figure 4), tape and other protective materials. As a fixed wire beam protective material. Each protection material has its own characteristics. To achieve line protection design, it is necessary to combine the actual line beam application environment to understand and correctly apply various protective materials.

The most application of engine wire beam protection materials is the ripple tube, and the outer protection line of the online beam is not broken. It is characterized by good abrasion resistance, good flexibility, and has a certain impact effect and curvature, and is convenient for installation. In the ripple tube, the kicker filling rate should be kept at about 60%, and the thread beam is too close to cause the wire beam to wear inside the ripple tube. The general long -term working temperature of ordinary ripples is -40 ~ 120 ° C, with a short -term maximum of 150 ° C. The flame retardant level UL94 -HB can resist the high temperature and high vibration of the high temperature and high vibration of the engine.

When the wiring beam must be wiring from a position with a high thermal radiation temperature, the insulation material can be wrapped in the outside of the ripple tube (Figure 5) to prevent the ripple from being baked. The closed -mouth ripples currently used have better protection effects and have a more beautiful appearance.

At present, the car engine is developing tightly. After all, the curved tubes are limited after all. In some narrow spaces of the engine, the wiring requirements cannot be achieved. Therefore, these parts need to be replaced by PVC tube. The main component of the PVC tube is polyvinyl chloride. The basic protection function is similar to the ripple tube. It is only because the texture is relatively soft, so the flexibility and bending line are better. Folding requires high positions.

The thermal tube is also a commonly used protective material. It is a special polyolefin -based thermal shrinking tube. The outer layer is made of high -quality soft cross -linking polyolefin material and the inner hot melt glue composite processing. The materials have the characteristics of insulation and corrosion, abrasion resistance, etc. The inner layers have the advantages of low melting points, waterproof sealing and high adhesion. At present, more use of arms are thermal tubes. Seal waterproof. At the same time, tapes are the most basic and most widely used wire beam protective materials, which have the characteristics of temperature resistance, wear resistance, oil -resistant, insulation, etc. According to the protection requirements of wire beams, they can be tangled and tangled.

When the engine cable is matched, the ripple tube is connected through a buckle, and the fixing of the wire beam branch is completed by tie. , Displace or interfere and damage the wire beam.

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