Aluminium casting air tightness detector

A technology for air tightness detection and aluminum casting, which is used in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the acceleration and deceleration rate of fluid.

Inactive Publication Date: 2014-03-12
重庆顺多利机车有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This test method cannot test tiny leaks, nor can it judge the severity of leaks. In addition, relying on human visual judgment can easily lead to misjudgment
At the same time, it is not conducive to the inspection of mass products

Method used

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  • Aluminium casting air tightness detector

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing and embodiment the technical solution of the present invention is further described:

[0013] like figure 1 As shown, the present invention provides an aluminum casting air tightness detection device, including a detection platform 1, and a base 2 arranged on the detection platform 1, the upper surface of the base 2 is provided with a sealing surface matching the aluminum casting 3 On the mating surface, the base 2 is provided with an extruded aluminum casting 3 and a hydraulic ejector rod 4 connecting the screw holes. The base 2 is provided with a vent hole corresponding to the cavity of the aluminum casting 3, and the vent hole is connected to the On the compressor 6, an electromagnetic valve 7 and a barometer 8 are connected in series on the vent pipe 5. In order to ensure the strength of the vent pipe 5 and prolong its service life, the vent pipe 5 adopts a metal pipe.

[0014] In use, the aluminum casting 3 is placed...

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PUM

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Abstract

The invention relates to a part air tightness detector, in particular to an aluminium casting air tightness detector which comprises a detecting set and a base arranged on the detecting set, wherein the upper surface of the base is provided with a matching surface matched with a sealing connection surface of an aluminium casting, a hydraulic ejector rod for extruding an aluminium casting connecting screw hole is arranged above the base, the base is provided with a vent which corresponds to the cavity of the aluminium casting, and the vent is connected to a compressor by a vent pipe on which a solenoid valve and a barometer are connected in series. By adopting the air tightness detector disclosed by the technical scheme of the invention, the detection speed is fast, and seal levels can be detected quantitatively.

Description

technical field [0001] The invention relates to an airtight detection device for parts, in particular to an airtight detection device for aluminum castings. Background technique [0002] At present, aluminum castings in the prior art are often used in parts such as hydraulic valve bodies, hydraulic pump bodies, and automobile engine housings that require sealing. The defects such as casting pores and looseness will cause leakage. Before that, an air tightness test is required. [0003] Most enterprises now use the water immersion method for inspection. The specific operation steps are as follows: seal the aluminum casting and put it in water, inject compressed air into the inner cavity of the aluminum casting. If there is a defect, the gas will leak out and generate air bubbles. This test method cannot test tiny leaks, nor can it judge the severity of leaks. In addition, it is easy to cause misjudgment by human visual judgment. At the same time, it is not conducive to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
Inventor 邓力
Owner 重庆顺多利机车有限责任公司
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