Automatic Integrated Oil Press The temperature rise of the hydraulic system is the same as the heat generation and pollution, and is also a form of comprehensive failure, mainly by measuring the oil temperature and a small amount of hydraulic components to measure.
Hydraulic machine hydraulic equipment is used as a working medium to transfer and transfer energy, the process of mechanical energy loss, pressure loss and volume loss will inevitably be converted into heat release. From the beginning of the operation close to the temperature of the room temperature, through the tank, pipe and body surface, but also through the set of oil cooler cooling, running a certain time, the temperature is no longer elevated and stable in a certain temperature range to achieve heat balance, both Poor is the temperature rise.
Excessive temperature rise will have the following faults and adverse effects:
① oil machine oil temperature increases, will reduce the oil straw, leakage increases, the pump volumetric efficiency and efficiency of the entire system will be significantly reduced 16%. Due to the decrease in the degree of berth, the slippery valve and other 12% 90 moving parts of the oil film thinning and cutting, frictional resistance 180 increased, resulting in increased wear and tear, the system heat, bringing a 125% higher temperature rise.
② oil machine oil temperature is too high, so that mechanical deformation of heat, both 100% -60 makes the thermal expansion coefficient of different components of the movement between the smaller and stuck, causing malfunction, but also affect the accuracy of hydraulic equipment, resulting in Parts processing quality deterioration.
③ oil machine oil temperature is too high, will make the rubber seal deformation, early aging failure, reduce service life, loss of sealing performance, resulting in leakage. Leakage will further heat up the temperature rise.
④ oil temperature is too high, will accelerate the deterioration of oil oxidation, attack asphalt material, reduce the life of hydraulic oil. Precipitation blockage damp hole and slotted valve port, resulting in pressure alarm pressure failure, flow valve instability and directional valve stuck without change, metal pipe extension bending, and even rupture and many other failures.
⑤ hydraulic oil temperature increases, the air separation of the pressure drop, pumping the dissolved air escape, resulting in cavitation, resulting in reduced performance of the hydraulic system.
