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Leakage testing system and method

A technology of leak testing and leak testing instrument, which is applied in the direction of measuring the increase and decrease rate of fluid and using liquid/vacuum degree to measure liquid tightness, etc. It can solve the problems of increasing detection time, reducing or even none, and achieving efficiency improvement. The effect of reducing time and producing convenience

Inactive Publication Date: 2018-11-30
广东鸿图武汉压铸有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most leak testing machines are designed to detect one cavity of a die-casting product. When the die-casting product is in a stable period, the leakage between the cavities will be reduced or even eliminated. The detection method of the cavity greatly increases the detection time

Method used

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  • Leakage testing system and method
  • Leakage testing system and method
  • Leakage testing system and method

Examples

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no. 1 example

[0039] see figure 1 with figure 2 , the embodiment of the present invention provides a kind of leak test system, is used for carrying out leak test to multi-chamber product, such as the airtight test of auto parts, and the leak test system includes manual pressure regulating valve 100, airtight leak tester 200, a controller 300, a plurality of first solenoid valves 400 and a second solenoid valve 500, and the plurality of first solenoid valves 400 communicate with the multiple chambers of the multi-chamber product in one-to-one correspondence.

[0040] Wherein, the controller 300 is electrically connected to the airtight leak detector 200, a plurality of first solenoid valves 400 and the second solenoid valve 500, the manual pressure regulating valve 100 is connected to the airtight leak detector 200, and the second solenoid valve 500 is connected to the airtight leak detector 200. Connected between the airtight leak detector 200 and the manual pressure regulating valve 100 ...

no. 2 example

[0055] see Figure 4 , is a flow chart of the leak testing method provided by a preferred embodiment of the present invention, and the leak testing method is applied to image 3 As shown in the leak test system, the following will be Figure 4 The process shown is described in detail.

[0056] In step S101, the controller 300 opens the second solenoid valve 500 to provide the required air pressure for the leak test.

[0057] The leak testing method that the embodiment of the present invention provides is applied to image 3 The leak test system described. When performing a leak test, the controller 300 controls the second solenoid valve 500 electrically connected to open to provide the required air pressure for the leak test.

[0058] In the embodiment of the present invention, there are multiple second solenoid valves 500, and the controller 300 opens the second solenoid valve 500 in one of the gas supply lines when performing a leak test. In this way, the leak test can ...

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Abstract

The invention provides a leakage testing system and method and relates to the field of airtightness detection. The leakage testing system and method are used for conducting a leakage testing test on amulti-cavity product. The leakage testing system comprises a manual pressure adjusting valve, an airtightness leakage testing gauge, a controller and a plurality of first solenoid valves communicating with a plurality of cavities of the multi-cavity product in a one-to-one correspondence mode. The manual pressure adjusting valve is used for adjusting the pressure intensity of introduced testing gas, and the controller is used for controlling opening / closing of the multiple first solenoid valves in a grouping mode, so that the multiple cavities of the multi-cavity product are subjected to theleakage testing test in a grouped mode through the airtightness leakage testing gauge; and when it is tested that the one or more groups of cavities leak, the same group of leaking cavities are grouped again to be subjected to the leakage testing test to test out all the leaking cavities. According to the leakage testing system and method provided by the invention, the multiple cavities of the multi-cavity product can be tested in the grouped mode, the efficiency of the leakage testing test is improved, the time needed by the leakage testing test is lowered, and convenience is provided for enterprise production.

Description

technical field [0001] The invention relates to the field of airtight detection, in particular to a leak testing system and method. Background technique [0002] Die-cast aluminum alloy products may have some air holes or shrinkage cavities, especially for some multi-cavity products, and there will be leakage between the cavities. [0003] At present, most leak testing machines are designed to detect one cavity of a die-casting product. When the die-casting product is in a stable period, the leakage between the cavities will be reduced or even eliminated. The detection method of the cavity greatly increases the detection time. Contents of the invention [0004] The object of the present invention is to provide a leak testing system and method to improve the above problems. [0005] The present invention is achieved like this: [0006] In the first aspect, an embodiment of the present invention provides a leak testing system for performing leak testing on multi-chamber p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 吴广川
Owner 广东鸿图武汉压铸有限公司