How is the electric shaver sealing test done?

Nowadays, most electric razors need full-body washing to adapt to the ever-faster pace of life. Most men like to shave when bathing or washing, so considering practicality and durability, consumers are more inclined to choose waterproof razors. If some parts of the shell, such as charging port, indicator light position, key position, etc. are not well sealed, it will cause water to enter the inside and corrode the internal parts, affecting the use time of the product, so in order to make the product waterproof, manufacturers often adopt various dustproof and waterproof processes to do dustproof and waterproof protection of products, and use electric shaver sealing test equipment for air tightness testing of injection shell, semi-finished product air tightness testing, and finished product air tightness testing, this ensures the quality of the finished product.

For the electric shaver shell to do the shell sealing test, the negative pressure method or the positive pressure method can be used, and the corresponding shell waterproof test fixture with the plug head can be customized according to the shell shape, you can put it into the product and use the positive pressure or negative pressure method to test the air tightness of the electric shaver shell; For the finished Electric Shaver waterproof test, the indirect test method of the positive pressure method is generally required, this is because electric shavers generally have no ventilation holes, so it is necessary to design an inner cavity sealing fixture that completely puts the electric shaver in and puts the product in, set the test time, allowable leakage value and other corresponding parameters of the electric shaver air tightness and waterproof testing equipment, and you can put the product into the Test OK (qualified) or NG (unqualified) results.