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Demonstration of testing process of water bag air tightness tester

As we all know, water storage bag as a liquid storage container, its air tightness requirements are very high, if its sealing degree is not high, the whole water storage bag is unqualified, and can not be used normally. In order to ensure its air tightness, the manufacturer will test its air tightness. Harris has developed a special air tightness tester for the detection of water storage bags and put it into the production line. This time, we will share the air tightness test case of water storage bag, hoping to give you a reference.

Air tightness tester for water storage bag

1、 Appearance of water storage bag and display of testing difficulties

The sealing degree of the water storage bag is high, and the whole water storage bag is made of high-precision materials, and the middle of the water storage bag is an outlet pipe; The folding degree of water storage bag is high, so the detection should not only meet the requirements of sealing and nondestructive, but also make the detection results accurate.

Water storage bag

2、 Demonstration of air tightness test process of water storage bag

1. Since the overall sealing degree of the water storage bag is high, the only air outlet is the middle pipe, so long as the pipe orifice in the middle of the water storage bag is aligned with the air outlet connecting with the instrument before detection, it is fixed.

Details of air tightness test tooling for water storage bag

2. At the beginning of the test, put the water storage bag into the tooling, fix it through the pipe orifice, and connect it with our instrument. There is a valve island, gas tank and other parts inside the instrument and the program we set.

3. After connecting, press the start key. The upper and lower molds behind the water storage bag pipe are closed to fix the water storage bag pipe orifice. The tool connecting the pipe on the left side of the tooling will fill the water storage bag with gas without impurities, so that the air tightness of the water storage bag can be judged by the air saturation inside the water storage bag;

Air tightness test tooling of water storage bag

4. If the water storage bag is not sealed and air leakage occurs, the leakage value in the instrument will be larger and larger, and the pressure value will drop. At this time, it can determine whether the water storage bag is leaking, and the instrument test results will also show ng, which means that the air tightness test fails. If the tested water storage bag does not leak, the gas in the tooling die will be in a constant state after inflation, the pressure value and leakage value displayed on the instrument are also stable, and the test result of the instrument will display "OK", indicating that the air tightness test has passed.

3、 Parameters of air tightness tester for water storage bag

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