Due to the corrosion of liquid and dual role of job stress, the pump housing of the LH45 type three cylinder high pressure plunger pump was caused the breakage in the practical work, and its service life was greatly reduced. Studied the pump housing broken state and laws to selected material to manufacture. Established 3D entity of the pump housing model in the 3D CAD software so that the stress and strain state of remade shell can be analyzed using finite element software ANSYS. Compared with the state of stress and strain before shell remaking, the pump housing remaking is proved to be valid.
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