Wiring components terminal harness material selection have skills

Terminal harness is a circuit to connect the wiring components of each electrical device, by the insulation sheath, terminals, wires and insulation wrapping materials, etc., the quality and service life of the terminal harness is closely related to the choice of harness materials, so in the choice of harness materials, we must be careful and cautious, from the source of the good quality off. First, the choice of wire according to the use of different environments, select the appropriate wire, for example: high ambient temperature around the car engine, corrosive gases and liquids are also a lot of corrosive, so be sure to use high-temperature, oil, vibration, friction-resistant wires; automatic transmission on the wire must be high-temperature resistant, resistant to hydraulic fluids, and its temperature stability should be good; weak signal sensors to be used with a shielded wire, such as the crankshaft position sensor and burst sensors, ABS wheel speed sensors, etc.; door line to use high bending resistance of the wire, etc.. Second, the choice of plastic shell plastic parts commonly used materials are mainly PA6, PA66, ABS, PBT, pp, etc., the design of plug-ins can be based on different needs to choose different materials, but also according to the actual situation in the plastic to add flame retardant or reinforcing materials in order to achieve the purpose of enhancement or fire-retardant, such as the addition of glass fiber reinforcement and so on. Three. Terminal material selection terminal material is mainly brass and bronze (brass hardness is slightly lower than the hardness of bronze), of which brass accounts for a larger proportion. In addition, different plating can be selected according to different needs, such as tin-plated, gold-plated and so on. Fourth, the choice of other accessories harness accessories play a wear-resistant, flame retardant, corrosion-resistant, prevent interference, reduce noise, beautify the appearance of the role, generally according to the working environment and the size of the space. Terminal harness is a circuit to connect the wiring components of each electrical device, by the insulation sheath, terminals, wires and insulation wrapping materials, etc., the quality and service life of the terminal harness is closely related to the choice of harness materials, so in the choice of harness materials, we must be careful and cautious, from the source of good quality.

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