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Portable airtightness test method

An airtight test, portable technology, applied in liquid tightness measurement using liquid/vacuum degree, by measuring the increase and deceleration rate of fluid, by detecting the appearance of fluid at the leakage point, etc., it can solve the problem of complicated equipment and unsuitable for portability Use and other issues, to achieve the effect of low environmental requirements, convenient transportation, and simple operation

Inactive Publication Date: 2018-12-07
SUZHOU LVKON TRANSMISSION TECH CO LTD
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AI Technical Summary

Problems solved by technology

If there is a failure of a product that has been put into use on the market, the airtightness test can be carried out during the maintenance process, which is of great help to the after-sales personnel in judging the cause of the failure; the existing airtightness test method has complicated equipment. Not suitable for portable use

Method used

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Embodiment Construction

[0014] A portable airtight test method, which is characterized in that: the air outlet of the product under test is blocked, and then the product under test is inflated. Comparing the calculated maximum leakage within this time, you can determine whether the airtightness of the tested product itself is qualified or not; during the test, if the airtightness of the tested product is not qualified, keep the tested product in the state of inflating Put the tested product into the water to see if there are any bubbles, and the place with bubbles is the leak point; if the tested product is inconvenient to enter the water, apply soapy water to the place where the product may leak, and the place where the bubbles are generated is the leak point.

[0015] The specific operation is as follows. Calculate the maximum leakage value C in the preset detection time period according to the equivalent internal volume of the product under test. After the gas outlet of the product under test is bl...

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PUM

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Abstract

The invention provides a portable airtightness test method. Direct testing is performed through pressure, and the detection system is simple and has low requirement for the use environment and is easyto operate and convenient to transport. The air outlet of the tested product is blocked and then the tested product is inflated. After completion of inflating, the leakage quantity in a certain period of time is compared with the maximum leakage quantity calculated according to the equivalent content volume of the tested product within the period of time so as to determine whether the airtightness of the tested product qualified or not. In the course of testing, if the airtightness of the tested product is not qualified, the tested product is put into the water under the condition of being inflated to observe whether there are bubbles, and the place where the bubbles exist is the leakage point.

Description

technical field [0001] The invention relates to the technical field of airtight testing of automobile parts, in particular to a portable airtight testing method. Background technique [0002] With the continuous development of the auto parts industry, air tightness testing plays a very important role in ensuring product quality. If there is a failure of a product that has been put into use on the market, the airtightness test can be carried out during the maintenance process, which is of great help to the after-sales personnel in judging the cause of the failure; the existing airtightness test method has complicated equipment. Not suitable for portable use. Contents of the invention [0003] In view of the above problems, the present invention provides a portable airtight test method, which is directly tested by pressure, has a simple detection system, has low requirements on the use environment, is simple to operate, and is convenient to transport. [0004] A portable a...

Claims

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Application Information

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IPC IPC(8): G01M3/26G01M3/06G01M3/12
Inventor 李磊江松林张雨欢陶红范海涛王涛朱鸿雁范本泽
Owner SUZHOU LVKON TRANSMISSION TECH CO LTD
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