FIELD: machine building.
SUBSTANCE: first the tested item is filled with working medium (liquid or gas), using a flow controller in the cavity of the tested item, sign-alternating pressure is created by means of vacuum pulling and excessive pressure pulling in accordance with the alternating cycle, the working medium is heated up to a certain temperature. The speed of heating depends on its density or viscosity, and the value of working medium pressure drop is provided by a mechanism of pressure pulsation, at the same time, to accelerate the testing process, air is supplied from outside to the tested item with specified concentration of ozone, and monitoring of working medium leak along the perimeter of the sealing zone, is carried out with the help of a group of sensors installed on the tested item.
EFFECT: reduced time of item testing for tightness.
7 cl, 2 dwg
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| DEVICE FOR DETERMINATION OF AGGREGATE LEAK FROM ARTICLES | 0 |
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SU872996A1 |
| 0 |
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SU67063A1 | |
| METHOD OF PRODUCTION OF OZONE | 1998 |
|
RU2160701C2 |
