A Method for Testing the Fatigue Life of Diaphragm Capsules Under Alternating Pressure
A fatigue life and alternating pressure technology, applied in the field of fatigue mechanics test, can solve the problems of high construction cost of the test system, accurate control of the minimum pressure of the unfavorable test, and large space occupied by the test system, so as to reduce the construction cost and the use cost, The effect of reducing volume and improving accuracy
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[0016] Such as figure 1 As shown, a test system for testing the fatigue life of a bellows subjected to alternating pressure, including a bellows assembly mounting seat 2, an O-ring 3, a first solenoid valve 4, a second solenoid valve 5, and a surge tank 6 , exhaust regulating valve 7, first pressure sensor 8, second pressure sensor 9, high pressure pipeline 10, low pressure pipeline 11, high pressure air inlet 12, low pressure air inlet 13 and pressure chamber 14.
[0017] Such as figure 2 As shown, the bellows assembly 1 is welded by bellows 15, flange 16, and sealing ring 17. The two ends of bellows 15 are respectively welded with flange 16 and sealing ring 17. After welding, the airtightness inspection is carried out to ensure Welded joints are airtight. The flange 16 includes two parts, one part is an annular shell, and the other is a flange structure located on the outer wall of the annular shell. There are threaded holes on the flange structure. The bellows 15 is loca...
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