The most complete in the whole network! Air tightness tester equipment various classifications and test methods

In industrial production.Airtightness TesterWidely used, it isA test equipment used to detect and measure the sealing and waterproof performance of various products.In order to ensure that there is no leakage of water or air defects in the tested parts, and to guarantee the quality and life of the products, it can be said that air tightness testing is indispensable from the cell phone we use everyday to the car we ride.

Article Catalog harbor (i.e. keep sth hidden)

I. Classification of airtightness tester

II. Bubble method test

III. Pressure drop method test

IV. Mass spectrometry testing

V. Summary

Ⅰ.Airtightness Testercategorization

There are many different types ofAir tightness testerEach has its own strengths and weaknesses.Airtightness TesterIt can be categorized according to different classification criteria:

It can be categorized according to the detection principle:Positive Pressure Tester,Negative Pressure Tester,Quantitative Tester,Flow Tester,Differential Pressure Tester,Positive and negative pressure detector,Burst Testeretc.
According to the different detection object can be divided into: cell phone hermetic tester, wire harness hermetic tester, die casting hermetic tester, lithium battery hermetic tester and so on.
According to the different degree of automation can be divided into: manual airtightness instrument, semi-automatic airtightness tester, fully automatic airtightness tester.
According to the different application environments can be divided into: new energy leak tester, home appliance leak tester, automobile leak tester, electronic leak tester, medical equipment leak tester and so on.
According to the different functions and performance of the product can be divided into: portable hermetic tester, desktop hermetic tester, high-precision hermetic tester and so on.

Airtightness Tester Category GIF — *Applied to different productsAirtightness Tester*

commonAirtightness TesterThis can be categorized into three main approaches.

Ⅱ.Bubble method test

The leak detection fluid is applied or sprayed on the outside of the product to be tested, and it is observed whether the fluid enters into the product or not. The representative instruments of the bubble method areWatertightness TesterThe waterproof test kit is also commonly referred to as a water test.

The most complete on the net! Airtightness tester equipment various classifications and test methods Illustration 2 — *Waterproof test chamber, also called rain test chamber*

Pros:Simple and easy to use, low cost.
Drawbacks:Can only detect the large hole vulnerability, can not detect the small hole vulnerability, is not applicable to the detection of high-pressure containers, the product test is also required after the completion of the drying and so on, the steps are cumbersome and time-consuming and labor-intensive, the method is applicable to the detection of large-scale equipment and components, there are limitations.

III.Pressure drop method test

The method of pressurizing and depressurizing the inspected product is used to test the airtightness and observe whether there is a drop in pressure. The representative instruments of the pressure drop method arePositive pressure air tightness tester,Volumetric quantitative air tightness testeretc., which is commonly referred to as a gas test.

1. Direct pressure test schematic — *Schematic diagram of the pressure drop method of testing*

Pros:Simple to operate, can detect small holes, cracks and other small holes, widely used, fast detection speed, and can even do a few seconds to measure a product.
Drawbacks:Can not detect the tiny leaks, can not accurately find the leakage point of the inspected product, the use of large pressure needs to be equipped with a booster pump.

telescopesAir tightness testing equipmentTests shell castings for air and water leakage.

IV.Mass Spectrometry

This type ofAir tightness testerA vacuum is applied to the product under test and the resulting vacuum decay is measured over a set period of time. This method allows the detection of minimal leakage by measuring the vacuum degradation that occurs. Mass spectrometry is represented by the following instrumentsHelium Leak Detector, Hydrogen Mass Spectrometer Leak Detector, etc., which is commonly known as Helium Detection.

The most complete on the net! Airtightness tester equipment various classifications and test methods Illustration 4 — *marketHelium Leak Detector*

Pros:It can detect tiny holes with high accuracy and can be used to inspect high-pressure, large-volume, closed container products.
Drawbacks:Requires specializedhelium detectorThe cost is higher.

V. Summary

In modern industrial manufacturing, theAirtightness TesterIt has become an indispensable tool.Airtightness TesterIt can quickly and accurately test the sealing performance of products and can detect small leaks. This can help plant manufacturers improve product quality and process efficiency, and reduce product failure rates and repair costs.

If you want to ensure that your product meets the highest quality standards, please choose the appropriate product according to the material, shape, size, application scenarios, as well as the accuracy requirements of the air tightness test, the purchase budget and other factors.Airtightness TesterThe