In the performance testing of mobile phones, its sealing test has become one of the key points that people cannot ignore.Among them, the sealing test of the back shell of mobile phones is valued by manufacturers as a basic test of mobile phones. However, traditional sealing testing can no longer meet today's testing needs. Hirays Technology has made many breakthroughs in the air tightness testing of various components of mobile phones and the air tightness testing of the entire mobile phone. This is not only reflected in technology, but also more mature in customized solutions.This time we will share the sealing test of the back case of mobile phones, hoping it will be helpful to everyone.
(Sealing tester for mobile phone back shell)
1. Analysis of the appearance and detection difficulties of mobile phone back shells
1. The back shell of the mobile phone is in the shape of a regular rectangular parallelepiped and is made of black waterproof shell material. The top is the camera port, and there are several reserved openings for basic operation areas on the right;
(Mobile phone back case)
2. The overall sealing degree is high, and there are no obvious gaps except for the reserved opening. The accuracy of the detection needs to be taken into consideration during the inspection. The non-destructiveness of the inspected product is also one of the focuses of inspection;
3. When testing products, direct testing methods cannot be used, and molds are required.
2. Demonstration of the sealing test process of the mobile phone back case
1. There are different detection methods for different models of mobile phone back cases.Hirays Technology has customized a special mold based on the appearance characteristics of the mobile phone back case. The mobile phone back case is placed into the mold. Since there is a camera port on the surface of the mobile phone back case, as long as the mobile phone back case is placed upward into the mold, the upper mold will block the vent hole. During the inspection, the instrument will fill the interior of the mobile phone back case with gas through the upper mold;
(Details of sealing test of mobile phone back case)
2. When testing, just place the back case of the mobile phone in the mold, set the program, and close the air outlet of the upper mold. When the instrument is started, it will automatically inflate the inside of the air outlet above the back case of the mobile phone. At the same time, the air pressure of the instrument will slowly rise. When the air pressure reaches the set value, the inside of the high-voltage protection device will be in a constant state. At this time, the induction line will determine the flow value to detect whether the air flow inside the device meets the standard.
3. Sealing tester parameters of mobile phone back shell
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