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[CN 201810533179.5] Free forging hydraulic press and control method thereof
[CN 201810533179.5] A Free Forging Hydraulic Press and Its Control Method Title: A Free Forging Hydraulic Press and Its Control Method Application Number: CN 201810533179.5 Applicant: Huazhong University of Science and Technology Application Date: 2018-5-29 Patent Type: Invention Application The present invention belongs to the technical field related to hydraulic transmission and control, and discloses a free forging hydraulic press and its control method. The free forging hydraulic press includes a working hydraulic pump, a working pump and a charging pump, the working pump and the liquid charging pump are respectively connected to the working hydraulic pump; the working hydraulic cylinder is of cylinder type and is used for providing two working pressures and two working speeds for the free forging hydraulic machine under the action of the same hydraulic power source; the working pump and the liquid charging pump cooperate with each other to provide corresponding flow rates for the free forging hydraulic machine under different tooling states. The invention can not only realize the normal forging speed and forging pressure in the forging production process, but also realize the high forging speed and small forging pressure during rapid finishing forging, that is, realize the "normal forging" and "fast forging" functions of the forging hydraulic press.
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