Airtightness Test for Fuel Car Parts

Automobile headlights, also known as automobile headlights and LED daytime running lights, as the eyes of a car, are not only related to the external image of an owner, but also closely related to safe driving at night or in bad weather. With the rapid development of the global automobile market in recent years, consumers who buy automobiles have put forward higher and higher requirements for the appearance and quality of automobile lamps. At this time, a lot of car lights have no way to meet the requirements of the car use environment, and the phenomenon of water ingress appears.

Product to be tested: automobile lamp

When manufacturing lamps, the air tightness of lamps is very important. When the driving environment is wet, if the air tightness of the lamp is not good, the water vapor is easy to enter the interior of the lamp, forming fog in the lamp, affecting the illumination of the lamp, and prone to traffic accidents. When the water vapor enters the interior of the lamp, it is easy to damage the circuit components inside the lamp, damage the car lamp, and reduce the service life of the car lamp.
At present, the airtightness test of lamps is usually carried out with airtight and waterproof testing equipment. First of all, Unielmeasurement customizes a special mold for the automobile lamp so as to conduct air tightness test. The mold is divided into upper mold and lower mold, which can provide a sealed detection environment for sealing detection after they are closed. In the detection, they also play a role in protecting the lights and preventing the lights from scratching.
Before startup, set the parameters to be detected, inflate the mold in an indirect way, and let the instrument fill a certain amount of gas into the mold. The gas will have a pressure stabilization process in the mold. At this time, a certain pressure will be formed on the periphery of the product. The pressure will be monitored by a precise pressure sensor. After a series of calculations, the gas leakage value can be obtained. According to the leakage value, the airtightness and IP waterproof grade of the automobile lamp can be detected.

At present, the requirements of the light industry are getting higher and higher, and more customers require that the lights meet certain waterproof levels. The traditional water inspection has been completely unable to adapt to the current mass production testing. As a more cost-effective air tightness testing instrument, the air tightness tester is suitable for mass testing.