Car fuel tank cap waterproof performance testing-fuel tank cap sealing test case sharing
The car fuel tank cap is the cover of the car's fuel tank, which is usually only opened when the car owner refuels.Because water cannot enter the car's fuel tank, the car's fuel tank cap needs to have complete sealing performance.Nowadays, when manufacturers produce fuel tank caps, they will conduct sealing tests on automobile fuel tank caps. The most advanced and convenient sealing testing method is to use compressed air to test the air tightness of the product.todayHirays TechnologyShare with everyoneSealing test of automobile fuel tank capmethod.
The product we want to test today is the inner cover of the car fuel tank cap. The inner cover is directly connected to the car fuel tank. If the sealing performance of the inner cover is not good, not only will water enter the fuel tank, which will directly affect the engine starting, but the gasoline in the tank will also evaporate, which will consume our fuel.The picture below shows the product we are going to test today - a car fuel tank cap.

This fuel tank cap is made of plastic material and is die-cast by an injection molding machine. The main inspection by the customer is whether the entire fuel tank cap and the connection between the oil inlet and the edge are completely sealed.
Because the customer's output is relatively large, the customer hopes to detect defective products quickly and efficiently, so this product was customized for the customer.Dual-channel fuel tank cap air tightness detectionequipment. It can detect two products at the same time, and the test results of the two products are detected separately at the same time. The test results are accurate and are not affected by the other party's test results.Dual channel tightness testerIt also saves human resources and costs for customers. 
According to customer requirements, our test pressure is 43KPA, voltage stabilization time is 10s, and test time is 6s. A complete test process takes 20s. On average, the test time of a product is 10 seconds.
There are several points that testers need to pay attention to when using our instruments.Before starting the test every day, we need to reset the test instrument to zero, then block our hose and check whether the inlet pressure of the instrument is the 43KPA we need. If the inlet pressure changes, we need to adjust the pressure regulating valve to achieve the pressure value we need.Before conducting assembly line inspection, we need to test one OK product and one NG product. After the test instrument has no abnormal reaction, we can then test other products.

For more than 10 years, Hirays has been providing free product testing solutions to customers, and relying on its increasingly rich experience to provide customers with valuable sealing advice, supporting key materials or testing resources during the design, trial production, mass production and other stages, enabling customers to shorten the verification cycle and avoid detours; quickly and with high quality according to customer requirementsWe provide one-stop service delivery and some humanized function customization in large quantities, as well as 24 hours outside the province and 8 hours efficient after-sales service within the province, which have been unanimously recognized by customers; Hiraysi's products serve many companies domestically, and are also exported to more than 50 countries overseas, and have achieved an excellent reputation in all walks of life.