Does the high and low temperature environment of four-column hydraulic press affect the function of hydraulic oil

Does the high and low temperature environment of four-column hydraulic press affect the function of hydraulic oil? The answer is definitely there, what impact we have to understand together!

High temperature environment of four-column hydraulic press: High temperature makes the oil viscosity smaller, the viscosity is too low, the hydraulic system leaks and even the hydraulic system cannot operate normally. High temperature aggravates the oxidation of the oil, and some copper, acid, gum, asphaltene and other substances are gradually formed in the oil, polluting the oil and shortening the service life of the oil. When the oil is oxidized to a certain degree, the oil fails and cannot be used.

Low temperature environment of four-column oil press: Low temperature makes the oil viscosity larger. The viscosity is too high, the pressure pump self-priming can fall, and the system pressure loss and power loss increase. It is generally believed that when the viscosity reaches 10mm2/s, the hydraulic system cannot operate normally, and when the viscosity reaches 20mm2/s, the hydraulic system cannot start normally.

Four-column hydraulic press at high temperature often forms steel and other non-ferrous metals in the oil corrosion, the formation of parts surface damage, together with the attack of corrosion. High temperature is more simple bubbles, the water in the oil vaporizes at high temperature, reaching 7K vapor, and the gas floating in the oil (primarily air) has a lot of bubbles due to high temperature evaporation. The bubbles damage the smooth oil film, sintering the friction surface or add wear, and oxidation and disintegration of the oil, affecting the accuracy and sensitivity of the hydraulic components, and can not meet the application requirements of the hydraulic system. High temperature makes the function of rubber seals in the hydraulic system worse, which can accelerate the aging of rubber and even seal failure; The high temperature of the four-column hydraulic press causes the volume of hydraulic oil to expand, so that the hydraulic pressure closed in the chamber rises, forming a risk.