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What is the reason for the high temperature of the hydraulic oil of the hydraulic oil press

September 23, 2021

hydraulic oil press

        The hydraulic oil temperature of the hydraulic oil press can easily lead to high viscosity, decrease in volumetric efficiency and system working efficiency, increase leakage, and even make the oil press unable to work normally.

        The parts of the hydraulic system expand due to overheating, destroying the original normal matching gap of the relative moving parts, resulting in increased frictional resistance and easy jamming of hydraulic valves. At the same time, the lubricating oil film becomes thinner and mechanical wear increases, resulting in pumps, valves, and motors. Premature wear of such precision mating surfaces makes them invalid or scrapped; accelerates the deterioration of rubber seals and shortens their life; oil vaporization and water evaporation can easily cause cavitation of hydraulic components; oil oxidation forms colloidal deposits, It is easy to block the small holes in the oil filter and the hydraulic valve, making the hydraulic system unable to work normally; the brand, quality and viscosity grade of the oil do not meet the requirements, or the mixing of different brands of hydraulic oil, resulting in the hydraulic oil viscosity index being too low or too high .

        The hose should be clamped and positioned reliably, and the pump, hydraulic cylinder and other hydraulic components should be replaced in time when they are worn out. Because worn components will increase the leakage, the pump will output full flow for a long time, and the oil passing through the narrow leakage gap will cause a large pressure drop. The increase of time in the case of slow flow output also increases fluid friction. The time the force is generated, so the temperature of the oil will rise. Keep the outside and inside of the oil system clean. Pollutants outside the system play a role in isolating and hindering normal oil cooling. Pollutants inside the system will cause wear and tear and cause oil leakage. Both situations will cause heat. The production.