First, visual inspection can be used to preliminarily determine whether the waterproof bolt is damaged. Observe whether there are signs of cracks, rust or deformation on the surface of the bolt, which are direct manifestations of bolt damage.
Secondly, air tightness testing is an effective way to detect whether the waterproof bolt has leakage. Using air tightness testing equipment, apply a certain amount of pressure to the connector and observe whether the pressure is stable. If the pressure drops, it may indicate a leak.
A drip test can also be used to detect the waterproof performance of the waterproof bolt. Place the wiring harness connector under a dripping device to simulate a rain environment and observe whether there are water drops penetrating into the connector. This method is simple and intuitive, but it may not detect tiny leaks.
Using infrared imaging technology is also an advanced detection method. By scanning the wiring harness connector with an infrared imager, the difference in temperature distribution can be observed, thereby discovering potential leaks or thermal anomaly areas.
In addition, a dedicated leak detection solution or fluorescent agent can be used to assist in detection. Apply the solution or fluorescent agent to the bolt and connector interface, and then observe whether there is any solution penetration or leakage path shown by the fluorescent agent.
During the inspection process, it is also necessary to check the integrity of the waterproof gasket or seal. These parts are key components of the sealing performance of the waterproof bolt, and if they are damaged or aged, they may also cause leakage.
It takes a combination of methods to detect whether the car wiring harness connector waterproof bolt has leakage or damage. Through visual inspection, air tightness test, drip test, infrared imaging technology and special leak detection solution, the sealing performance and integrity of the waterproof bolt can be fully evaluated to ensure the normal operation and safety of the vehicle electrical system.
