Source：Shuntec Update：2022-05-10-09:57:44Views：133
Hydraulic oil plays the role of energy transmission, anti-wear, system lubrication, anti-corrosion, anti-rust, cooling, etc. in the hydraulic system. For hydraulic oil, first of all, it should meet the requirements of the hydraulic devices for liquid viscosity at working temperature and starting temperature. Each hydraulic oil has a certain range of use. Too high or too low temperature is detrimental to hydraulic oil. Influence.
The influence of low temperature on hydraulic oil is as follows:
1.The low temperature causes the rubber sealing material in the hydraulic system to shrink and harden, which reduces the sealing performance and even causes the sealing to fail;
2. Low temperature makes hydraulic oil more viscous. If the viscosity is too high, the self-priming ability of the oil pump will decrease, the pressure loss of the hydraulic system will increase, and the power loss will increase. It is generally believed that when the viscosity is greater than or equal to 1000mm2/s, the hydraulic system cannot work normally, and when the viscosity is greater than or equal to 2000mm2/s, the hydraulic system cannot be started normally;
3. The low temperature causes the hydraulic oil to shrink itself, especially the hydraulic oil in the closed cavity, which reduces the pressure and even generates negative pressure;
4. The low temperature causes the water in the hydraulic oil to solidify, and the solidified water adheres to the surfaces of the hydraulic valve parts, oil filter, etc., which may cause the hydraulic valve to be stuck, the oil filter to be blocked, and the hydraulic system cannot work normally.
Shuntec – Hydraulic press machine manufacturer.
Email：mattchan@shuntecpress.com
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