Wire harness processing manufacturers tell you terminal harness poor contact is how to deal with?

Surface or internal management of insulators with metallic excesses. Surface dust. Pollution of soldering flux, etc.; precipitation of organic binding materials and harmful gases through the adsorption film and surface water film to form an ionic conductive channel. Hygroscopicity, aging of the insulating structure materials, etc., can directly lead to system short-circuit. Leakage. Breakdown. Insulation resistance and other bad insulation phenomena. If the connection end of the poor contact how to do?1, guide test. At present, the terminal manufacturers usually do not test the product, and users often need to carry out flip-flop testing. It is recommended that some key models of the manufacturer's products should be raised to point conduction test.2. Instant detection. Some terminal connections are used for dynamic vibration control environment. Experimental studies have shown that relying solely on static contact resistance test is qualified, it can not guarantee that the enterprise in a dynamic development of the environment using contact reliability. This is because, typically, connectors that do not have qualified terminal contact resistance are subjected to effective vibration. Shock and other simulated technical environmental factors test, there will still be instantaneous disconnection phenomenon, therefore, for certain terminals with high reliability requirements, dynamic vibration testing can be carried out to ensure that the contact reliability. 3, single-hole separation force detection. Centrifugal force is the insertion state, the separation force of the contact part from static to movement, to characterize the contact state of the needle and jack. Experimental results show that the single-hole separation force is too small, under the action of vibration and shock load, the signal will instantly rupture. Detecting contact reliability is more effective than the single-hole separation force method. Inspection found that the single-hole separation force exceeds the poor jack, the contact resistance is often still qualified. In order to achieve this goal, wire harness processing manufacturers in addition to the development of a stable and reliable new generation of flexible plug-in contacts, for important models, wire harness processing manufacturers can not use multi-point force gauge for multi-point testing, the finished product should be a point by point single-hole separation force check, to prevent the individual jacks loose caused by signal transients.

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