The hydraulic press
uses the hydraulic system to transmit and convert energy. Most of the mechanical energy loss, pressure loss and volume loss during operation will be converted into heat and released. The liquid in the hydraulic system will accumulate a lot of energy from the machine movement during operation, and the rapid heating of the liquid will directly affect the normal operation of the hydraulic system of the frame hydraulic press.
First, the overheating of the oil in the hydraulic press
will increase the friction of the hydraulic system
The rapid rise of the liquid temperature of the hydraulic press can easily lead to a decrease in the stubbleness of the liquid and an increase in the leakage of the liquid. The volumetric efficiency of the pump and the efficiency of the overall system can be significantly reduced. Due to the rapid reduction of the straw degree of the liquid, the oil film on the moving parts such as the spool valve will be thinned and cut, and the frictional resistance will increase accordingly, resulting in increased wear of the machine and continuous heat generation.
Second, the overheating of the oil in the hydraulic press can easily affect the sealing life of the hydraulic system
If the temperature of the hydraulic press is too high, the rubber seal will be deformed, the service life will be reduced, the aging will fail prematurely, the sealing performance will be lost, and the liquid leakage of the hydraulic system will be caused, which will directly affect the normal operation of the hydraulic system.
Third, the hydraulic press liquid is overheated
If the liquid temperature of the hydraulic press is too high, it is easy to reduce the air separation pressure in the hydraulic system, and the escape of dissolved air is likely to cause cavitation in the hydraulic system, which directly reduces the working performance of the hydraulic system.
Fourth, the overheating of the oil in the hydraulic press can easily lead to the reduction of the accuracy of the machine
Excessive liquid temperature of the hydraulic press will cause thermal deformation of the machine, which will reduce the gap between the moving parts with different thermal expansion coefficients in the hydraulic components and cause them to become stuck.
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