Lubricating oil is a kind of lubricant, which is between two objects in relative motion and has the function of reducing friction caused by contact between two objects. In addition, it also has the functions of cooling, rust prevention, cleaning, sealing and buffering. The lubricating oil is divided into diesel engine lubricating oil and gasoline engine lubricating oil, which have different brands to choose from.
Hydraulic oil is the hydraulic medium used in the hydraulic system using liquid pressure energy. It plays the role of energy transmission, anti-wear, system lubrication, anti-corrosion, rust prevention, cooling, sealing, etc. in the hydraulic system. Hydraulic oil is a kind of special oil to transfer pressure (power), which is divided into ordinary hydraulic oil, anti-wear hydraulic oil and low freezing point hydraulic oil. The hydraulic oil of construction machinery is a special oil for hydraulic system developed according to the actual working environment requirements of construction machinery and die-casting machines. Compared with other hydraulic oils, the hydraulic oil of construction machinery has better anti-wear, rust resistance, demulsibility, oxidation stability, hydrolysis stability and thermal stability.
The similarities and differences between hydraulic oil and lubricating oil
From the above explanation, we can see that both lubricating oil and hydraulic oil have the same functions of anti-wear, cooling, rust prevention, cleaning, sealing, etc. This is also the main reason why we often hear some words about hydraulic oil can be used as lubricating oil.
Differences in main functions
In terms of main functions, lubricating oil and construction machinery hydraulic oil are different. The main function of lubricating oil is to reduce the damage to machinery caused by object friction; The main function of construction machinery hydraulic oil is to transfer pressure (power).
It is precisely because of their different main functions that lubricating oils pay more attention to the functions of reducing friction, slowing down wear and preventing metal sintering; The hydraulic oil pays more attention to the viscosity index, which requires the hydraulic oil to perform well at high temperatures and ensure easy flow at low temperatures to reduce energy consumption.
What are the hazards of using hydraulic oil as lubricating oil
1. The viscosity of hydraulic oil is generally small, while the viscosity of lubricating oil is generally large. Therefore, when hydraulic oil is used as lubricating oil, the formation of oil film is relatively difficult, which will easily lead to greater wear of the machine, or even serious consequences.
2. The main functions of hydraulic oil and lubricating oil are different, so the additives in them are also different. The mixing of the two oils will lead to changes in performance, and even chemical reactions, which will deteriorate the oil, leading to greater wear of the machine.
3. The working temperature of the hydraulic system is not high, but the unit pressure transmitted by the hydraulic oil is large. However, the working temperature of the engine crankcase is very high, coupled with the high temperature and high pressure gas entering the combustion chamber, which will make the various functions of the hydraulic oil lose efficacy more quickly, resulting in increased wear of the machine, and even greater losses if it is serious.
The above is a detailed introduction of 46 # hydraulic oil, and I hope it will be helpful to you. If you have any questions, please contact us. We will provide services for you with our attitude https://www.smxnykj.com/