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The usage of air tightness testing equipment and the demonstration of its industrial application cases

At present, the testing methods of air tightness testing equipment in the market are mainly divided into bubble detection, pressure drop detection and differential pressure air tightness detection. At present, the mainstream air tightness testing equipment in the market is pressure drop testing. The air medium pressure drop method has high efficiency, strong versatility, high detection rate and non-destructive testing. The multi-channel air tightness tester can detect multiple products at the same time, which is the mainstream air tightness tester testing method.

According to pressure, air tightness testing equipment can be divided into three types: low-pressure type, general-purpose type and high-pressure type, which can be purchased according to actual needs. The corresponding parameters are shown in the following table:

The parameters of ultra-high pressure leakage tester are not included in this list. If necessary, communicate with Harris technology in advance to determine the corresponding parameters.

When completing the whole testing process of the air tightness testing system, we need to prepare the leakage tester, air source and testing fixture, and combine them to complete the test. Among them:

1. The test fixture should be customized according to the characteristics of the tested products;

2. Air source

(1) The air supply pressure of the main engine is 0.4 ~ 1.2MPa, which cannot be used beyond this range; The working air pressure of the test fixture should be adjusted at 0.4 ~ 0.5MPa, otherwise the cylinder may not press the die tightly, which will affect the sealing effect

(2) The gas source should be stable, and the fluctuation should not exceed 50kPa, otherwise the test results will be affected( 3) The compressed air must be dry and free of moisture and impurities, otherwise it is easy to damage the internal pipeline of the leakage tester.

Harris air tightness tester has a wide range of applications, and can be used in many fields

Mobile phone industry (mobile phone back cover / middle frame, whole machine waterproof, various waterproof parts, waterproof mobile phone cover products) as shown in the figure;

Automobile industry (tire pressure, car camera, car lamp, controller, car pipeline, charging gun, etc.);

Battery industry (battery pack, lithium battery shell, terminal and shell, battery charger, etc.); Home appliance industry (home controller, coffee machine, juicer, blender, kettle, electric toothbrush, etc.);

Smart wearable industry (smart bracelet, watch, underwater alarm, etc.);

Audio industry (Sports audio, Bluetooth speaker, Bluetooth headset, etc.);

Outdoor security industry (LED lamp, outdoor camera, intelligent door lock, outdoor controller, communication base station, underwater alarm, etc.); Military supplies industry (fuze, walkie talkie, handheld walkie talkie, car walkie talkie, three defense mobile phone, etc.);

Medical device industry (sphygmomanometer, electronic thermometer, endoscope, capsule and various infusion oxygen pipe);

Wire harness industry (waterproof connector, waterproof wire, etc.).

Other industries (valve tightness, pipeline permeability, joint tightness test);

Above, we introduced the use of air tightness testing equipment and the industry application cases of air tightness testing equipment, hoping to help you. If there are other problems related to air tightness testing equipment, you can contact the online customer service on the official website of Harris technology in time.

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