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High temperature sealing performance of metal wound gasket

- Nov 08, 2017 -

The high temperature sealing performance of metal wound gasket includes two aspects: first, the influence of the change of medium pressure on the leakage rate under different temperature and different gasket stress level; The second is the change of leakage rate with time in constant temperature and constant gasket stress.

The relationship between leakage rate of metal wound gasket and temperature, residual compressive stress of gasket and medium pressure are as follows:

Metal Wound gasket Selected five temperature levels: 15, 150, 300, 400, 500. C, four metal wound gasket Stress Rating: 40, 55, 70, $number MPA, four medium pressure grade: 0.5, 2.0, 3.5, 5.0 MPa. The leakage rate of different temperature, different gasket stress and different medium pressure was determined. Under the constant temperature and the selected gasket stress level, the dielectric pressure is loaded from low to high, and the leakage rate of the same test temperature, the same gasket stress level and different medium pressure is obtained. Change temperature and gasket stress level, repeat the above test

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