Can the oil filter oxidize the oxidized oil
2018/5/17 Viewers:
The insulation oil and turbine oil used in China are mostly petroleum products, that is, mineral oil. The main chemical composition of mineral oils is hydrocarbons, which are composed of various hydrocarbons. Therefore, in the process of use and storage, oil will be exposed to oxygen in the air. Under certain conditions, chemical changes will occur, and some new oxidation products, such as acids and glia, will be produced. These oxidation products are aggregated in oil, and the oil will change in appearance or physical and chemical properties, such as the depth of the color, the increase of viscosity, the increase of acidity and so on, and the precipitate of the oil sludge will be precipitated to make the oil lose its excellent physical and chemical properties. Chemical reactions like this are known as oil oxidation (or aging and cracking). The oxidation process of oil is very complex and its oxidation products are varied, which can be roughly summed up as follows: (1) the chemical composition of the oil and the proportion of these components in the oil. (2) temperature condition. (3) whether the contact with the air (mainly oxygen) is sufficient or not. (4) the time of oxidation. (5) catalysis of metals and other substances, (6) other factors.
The working pressure of hydraulic oil is mainly for the lubricity of the hydraulic oil, that is, the anti-wear requirement. The hydraulic components of the high pressure system, especially the friction pairs in the state of the boundary lubrication in the hydraulic pump, make the friction and wear conditions more harsh as the positive pressure increases and the speed is high. It is necessary to choose the HM oil, which is lubricity and excellent extreme pressure. Hydraulic oil is selected according to the working pressure of hydraulic system and oil pump. The pressure <8MPa is L - HH, L - HL (the vane pump is L-HM), and the pressure 8-16MPa uses L HL, L - HM, L - hydraulic pressure. The working pressure of the hydraulic system is usually marked by the rated or maximum pressure of the main oil pump.
The working temperature of hydraulic oil refers to the temperature of hydraulic oil at working time. It is mainly required for the viscosity and thermal stability of hydraulic oil. The working temperature is -10-90 C L HH, L HL, L HM hydraulic oil, L HV, L HS, and high quality L H, L H, and L H at working temperature below -10. The general relationship between ambient temperature and operating temperature is that the hydraulic equipment is in the workshop of the workshop, the normal working temperature is 15-25 degrees centigrade higher than the ambient temperature, and the hydraulic equipment is 25-38 degrees centigrade outside the temperate zone and 40-50 degrees centigrade under the tropical outdoor sunshine.
The working pressure of hydraulic oil is mainly for the lubricity of the hydraulic oil, that is, the anti-wear requirement. The hydraulic components of the high pressure system, especially the friction pairs in the state of the boundary lubrication in the hydraulic pump, make the friction and wear conditions more harsh as the positive pressure increases and the speed is high. It is necessary to choose the HM oil, which is lubricity and excellent extreme pressure. Hydraulic oil is selected according to the working pressure of hydraulic system and oil pump. The pressure <8MPa is L - HH, L - HL (the vane pump is L-HM), and the pressure 8-16MPa uses L HL, L - HM, L - hydraulic pressure. The working pressure of the hydraulic system is usually marked by the rated or maximum pressure of the main oil pump.
The working temperature of hydraulic oil refers to the temperature of hydraulic oil at working time. It is mainly required for the viscosity and thermal stability of hydraulic oil. The working temperature is -10-90 C L HH, L HL, L HM hydraulic oil, L HV, L HS, and high quality L H, L H, and L H at working temperature below -10. The general relationship between ambient temperature and operating temperature is that the hydraulic equipment is in the workshop of the workshop, the normal working temperature is 15-25 degrees centigrade higher than the ambient temperature, and the hydraulic equipment is 25-38 degrees centigrade outside the temperate zone and 40-50 degrees centigrade under the tropical outdoor sunshine.
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