Active Member
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[China]
Address: Jiayumutun Village,Qiuzhuang Township,Anci District,Langfang City,Hebei Province,P.R.China
Contact name:Zhang
Yile (Langfang) Environmental Protection Technology Co., Ltd |
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Industrial excellent wear resistance, anti-rust lubricating oil, hydraulic oil
Introduction
Hydraulic fluid or hydraulic fluid is the medium that transmits
power in hydraulic machinery. Common hydraulic oils are based on
mineral oil or water. Examples of equipment that may use hydraulic
oil include excavators and backhoes, hydraulic brakes, power
steering systems, automatic transmissions, garbage trucks, aircraft
flight control systems, elevators, and industrial machinery.
If the hydraulic oil used has zero compressibility, the hydraulic
system described above will work most efficiently.
Functions and properties
The primary function of a hydraulic fluid is to convey power. In
use, however, there are other important functions of hydraulic
fluid such as protection of the hydraulic machine components. The
table below lists the major functions of a hydraulic fluid and the
properties of a fluid that affect its ability to perform that
function:
Function | Property |
Medium for power transfer and control | · Non compressible (high bulk modulus) · Fast air release · Low foaming tendency · Low volatility |
Medium for heat transfer | Good thermal capacity and conductivity |
Sealing Medium | · Adequate viscosity and viscosity index · Shear stability |
Lubricant | · Viscosity for film maintenance · Low temperature fluidity · Thermal and oxidative stability · Hydrolytic stability / water tolerance · Cleanliness and filterability · Demulsibility · Antiwear characteristics · Corrosion control |
Pump efficiency | · Proper viscosity to minimize internal leakage · High viscosity index |
Special function | · Fire resistance · Friction modifications · Radiation resistance |
Environmental impact | · Low toxicity when new or decomposed · Biodegradability |
Functioning life | · Material compatibility |
application:
Base oils are used in the manufacture of products, including greases, engine oils and metalworking fluids. Different products require different oil compositions and characteristics. One of the most important factors is the viscosity of the liquid at different temperatures. Whether crude oil is suitable for making base oil depends on the concentration of base oil molecules and the ease with which these molecules can be extracted. Base oil is produced by refining crude oil. This means that the crude oil is heated so that the various distillates can be separated from each other. During the heating process, light hydrocarbons and heavy hydrocarbons are separated-light hydrocarbons can be refined into gasoline and other fuels, while heavy hydrocarbons are suitable for asphalt and base oil.
