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Common Problems in Wire Harness Processing and Their Solutions Automotive Engine Harness Failure Analysis

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Specializing in the sales of: Connectors | Wire Harness | Cable Products

In the harness processing time we will encounter a variety of problems, we have organized a number of harness processing in the common, with the universality of the problem, as well as its solution: First, wear rubber shells when the terminal off the PIN in the wear rubber shells often occur when the terminal off the PIN situation, then how do we solve it? In fact, it is only necessary to have a pull back action in every insertion into a hole. Second, the wire is stained with tin once the wire is stained with tin, it may cause the PVC heat retraction. Encountered such a situation, to choose temperature-resistant PVC, and to control the time not too long to dip tin. Third, after crimping tension is not enough if the harness tension can not be reached, you can choose from the following aspects to find the reason: terminals and wire conductors crimp range is appropriate; blade material and its structural design; terminal material and so on. Fourth, the labeling does not stick if the labeling does not stick, then we do not use our hands when sticking direct contact with the self-adhesive surface, the first paste in a clean metal above, and then one by one to the line above the sticker.

Automotive wiring harness charred, ablated wiring harness charred, ablated is the engine wiring harness "dangerous" a failure mode, which can lead to a serious fire burn car. There are many reasons for this situation, analysis of the following five kinds.1) too close to the source of heat radiation, resulting in rapid aging of the harness.2) around the leakage of high-temperature gases, the wire harness is located in an environment where the temperature exceeds the temperature range of the material can withstand.3) the environment is relatively closed, air convection is small, relying mainly on the radiation of heat dissipation, heat dissipation speed is slow.4) overload of the circuit load, resulting in the lead wires are heated intensely and burn the external insulating sleeve. Insulation sleeve. 5) Failure to do a good job of wiring harness fixing, protective measures. Wiring harness in the engine, exhaust, water pipes and other heat sources nearby, often due to the lack of harness card fixed and burned, or even baked, resulting in electrical equipment can not work properly.

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