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Pressure Resistance Characteristics of Vacuum Bellows

Stress resistance is an critical parameter for the efficiency of vacuum bellows. The optimum static force that the bellows can stand up to with out plastic deformation on the waveform at regular temperature, which is the optimum strain resistance of the bellows. In basic, the bellows is under a certain force (inner or external pressure) Work, so it should endure this force during the whole function procedure with out plastic deformation.

The force resistance of vacuum bellows truly belongs to the energy classification of bellows. Batter yR&D Equipment to the calculation is anxiety examination, that is, the anxiety on the wall of the bellows is analyzed. As lengthy as the anxiety at the highest stress stage on the wall of the bellows does not exceed the yield power of the material, the force on the bellows will not reach its strain resistance.

The same bellows is a lot more stable under exterior strain than under inside pressure when other working problems are the exact same. For that reason, the optimum strain resistance underneath exterior pressure is larger than that beneath inner stress.

When the two ends of the bellows are set, if a enough strain is handed into the interior cavity of the bellows, the bellows of the bellows might burst and injury. When the bellows commences to burst, the pressure value inside the bellows is named the burst force. Burst force is a parameter characterizing the greatest compressive toughness of the bellows. In the course of the complete doing work process of the bellows, its operating force is considerably less than the burst stress, or else the bellows will be damaged and destroyed.

When the corrugated size is considerably less than or equivalent to the outer diameter, the calculation outcome is quite close to the genuine burst force the genuine burst pressure of a slender corrugated pipe is considerably reduce. The burst strain is about 3 to 10 times the allowable working force.
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