Hydraulic press working principle

Published：2014/6/3 11:48:14 　　Hits：2379

Hydraulic press working principle. Large and small area of the piston is S2, S1。

Hydraulic Press were strongly F2, F1. According to Pascals principle , the pressure is equal throughout the closed liquid , i.e. F2/S2 = F1/S1 = p; F2 = F1 (S2/S1). Represents the gain of the hydraulic effect , and mechanical advantage , as the force increases , the power gain is not so large from the plunger movement of the plunger movement is S1/S2 times smaller distance.
The basic principle is to pump the hydraulic fluid supplied to the integrated cartridge valve blocks , each one-way valve and pressure relief valve by the hydraulic oil cylinder assigned to the upper chamber , or lower chamber , under the action of high pressure oil , so that the cylinder motion . Hydraulic Press by the liquid pressure is transmitted to the device. When the delivery pressure of the liquid in a sealed container is to follow Pascal s law. Hydraulic drive system hydraulic machine from the power sector , control agencies, implementing agencies, assisted institutions and media components. Power mechanism commonly used as a power pump body , usually the plot style pumps. In order to meet the requirements of the actuator velocity , use a pump or multiple pumps. Low ( less than hydraulic 2.5MP) with a gear pump ; medium pressure ( oil pressure is less than the 6.3MP) with a vane pump ; high pressure ( hydraulic less than 32.0MP) with a plunger . Pressure of various plastic materials processing and forming, such as stainless steel sheet extrusion , bending, stretching and cold forming metal parts , and can be used for powder products , wheel , bakelite , a thermosetting resin products repression.