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Hydraulic Press Is One Of The Earliest Applications Of Hydraulic Transmission
- Jul 24, 2017 -

  Hydraulic press is one of the earliest applications of hydraulic transmission, the current hydraulic transmission has become the main form of pressure processing machinery. In the aviation industry, heavy machinery manufacturing, plastics and nonferrous metal processing industry, hydraulic press has become an important equipment.

  Hydraulic press system is based on pressure conversion system, the system pressure is high, the flow is large, the power is big. So should pay special attention to improve the prime mover power utilization and to prevent the pressure generated when the shock and vibration, to ensure safe and reliable.

  The hydraulic press according to the pressing process requires the master cylinder to be able to complete the rapid downstream of a deceleration to suppress a holding pressure delay of a pressure relief return to a stop (at any position) of the basic working cycle, and the pressure, speed and holding time need to be adjusted. Ejector hydraulic cylinder is mainly used to eject the workpiece, requiring to achieve the top, return, stop the action.

  Such as sheet tension, but also requires the top of the hydraulic cylinder to rise, stop and pressure return and other auxiliary action. Hydraulic press Sometimes the need to use the blank holder to press the blank to prevent wrinkling around. The maximum pressure (tonnage) of the main actuator (master cylinder) that can be output in the main movement is the main specification of the hydraulic press and has been serialized. The tonnage of the top cylinder is often 20% to 50% of the tonnage of the master cylinder. The top cylinder of the extruder can be about 1% of the main tonnage. Double acting tension hydraulic press tonnage cylinder tonnage, generally used to stretch cylinder tonnage of about 60%. By the pressure processing technology to determine the speed of the master cylinder, usually in the hydraulic system directly from the pump, the working speed of not more than 50mm / s, fast forward speed of not more than 300mm / s, Hydraulic press fast forward speed and fast forward speed equal.