How to adjust the pressure of Double station hydraulic press?

　　Everyone knows that a hydraulic press uses liquid pressure to transfer energy. Using it at the correct power can help extend its service life. It is normal for pressure to be lost during operation. We must understand the reason and master the method of adjusting pressure.

 

　　Pressure loss along the way. When the hydraulic oil flows in a straight pipe of equal diameter, there will be pressure loss due to viscous friction. There is also a local pressure loss in the hydraulic machine. The hydraulic oil flows through the elbows, joints, sudden sections and valve ports of the pipeline. When local devices such as filters are used, the liquid flow will produce vortices and strong turbulence, resulting in pressure loss, and finally the total pressure of the four-column press pipeline system. Loss, the total pressure loss of the entire pipeline system of the hydraulic press should be the sum of all pressure losses along the way and all local pressure losses; in order to reduce the pressure loss, the flow rate can be reduced, the pipeline length can be shortened, and sudden changes in the pipeline cross-section can be reduced to improve The loss of inner wall processing quality is only one aspect. In order for the hydraulic function to play a better role, the pressure must be adjusted during the operation.

 

　　Double station hydraulic press system pressure cannot be higher than pump pressure unless increased. Whether to test pressure depends mainly on the load, which is automatically generated rather than debugged. The given pressure should be the maximum pressure value for normal operation of the hydraulic press; reduce the overflow valve pressure, close the pump outlet in the middle position of the throttle valve and the reversing valve, adjust the overflow valve, and increase the pump outlet pressure until the required value is reached.

　　In fact, the maximum working pressure of the Double station hydraulic press is the nominal pressure, which is a constant. The minimum pressure of the cylinder working movement is the ejection force, and the minimum pressure of the cylinder reversing or retracting is the return force. In simple terms, first convert the tonnage of the hydraulic press into Kg, and then multiply it by 9.8N/Kg to get the nominal force of the hydraulic press. This force divided by the total working area of ​​the hydraulic press working plunger gives the maximum pressure of the working fluid.

 

  Dongguan Shengshi Weiye Machinery Technology Co., Ltd. specializes in the production of Forging Press, Deep Drawing Hydraulic Press, Gravity Casting Machine, Four-column Servo Press, C Type Pneumatic Press and other machines. Friends in need are welcome to pay attention and learn more.