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The hydraulic expansion of the heat exchange tube-to-tubesheet is to apply the liquid pressure to expand the inner wall of the tube uniformly through the device. It make the tube wall deformed and contact the tube sheet. The expansion pressure which affects the quality of the expansion of the heat exchanger is one of the important factors for the hydraulic expansion of the heat exchanger. Therefore, in order to meet the expansion requirements, it is necessary to determine the expansion pressure of the heat exchange. The determination of hydraulic expansion pressure by some scholars are introduced in this paper.

Determination of expansion pressure of heat exchange based on three material models