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Working Composition Structure Of Hydraulic Press
A hydraulic press is a machine that uses liquid as a working medium to transfer energy to realize various processes. In addition to being used for forging and forming, hydraulic presses can also be used for straightening, pressing, packing, briquetting and pressing.
Hydraulic press includes hydraulic press and hydraulic press. Water-based liquid is called hydraulic press, and oil is called hydraulic press. The specifications of hydraulic presses are generally expressed by nominal working force (kN) or nominal tonnage (tons). Most hydraulic presses for forging are hydraulic presses with relatively high tonnage. In order to reduce the size of the equipment, large forging hydraulic presses usually have higher pressures, and the tonnage of hydraulic presses is lower than that of hydraulic presses.
The hydraulic machine system is composed of pumps, filter elements, pipelines and various valve bodies. The most basic thing is to have a hydraulic pump to provide pressure, and an overflow valve to prevent the system from being too high and unloading in time. The reversing valve controls the flow of oil in the hydraulic cylinder to control the expansion and contraction of the hydraulic cylinder.
The power loss of the hydraulic machine system will cause energy loss and reduce the overall efficiency of the system. On the other hand, this part of the energy lost will be converted into heat energy, which will increase the temperature of the hydraulic oil and deteriorate the oil, resulting in the appearance of hydraulic equipment. malfunction. Therefore, when purchasing a hydraulic press system, under the premise of meeting the requirements for use, full consideration should be given to reducing the power loss of the system.
Hydraulic machines are nothing more than two control methods, one is the opening of the pressure control spool, and the other is the opening of the spool controlled by the electromagnetic force. The hydraulic press should not be overhauled or adjusted during the working process; it should not be overloaded or used beyond the maximum eccentricity; electrical equipment must be grounded firmly and reliably.