What is the oil? As well as the role of

As a lubricant oil used (such as petroleum distillates or fatty substances oil) was coated in the machine bearing the surface of the moving portion of oily liquid. Reduce friction, avoid heat, to prevent machine wear and other role. Usually the product of fractionation oil, also driven in vegetable oil refining. Also known as "grease".

The non-volatile oily lubricant. Move according to their source, vegetable oils, petroleum oils and synthetic lubricants three categories. The the petroleum lubricants amount of more than 97% of the total amount of lubricant often refers to petroleum lubricant. Mainly used to reduce the friction between the surface of the moving parts, cooling, sealing, corrosion, rust, insulation, power transmission, on machinery and equipment at the same time having a cleaning impurities role.

Lubricating oil distillates and residual oil fractions from the crude oil distillation unit as raw materials, through the solvent deasphalting, solvent dewaxing, solvent refining, hydrotreating, acid or alkali refining, clay refining process to remove or reduce the formation of free carbon substances substances, poor oxidation stability of the substance, paraffin wax, as well as affect the finished oil color chemicals and other components of the low viscosity index, to obtain a qualified lubricating base oil, additives are added after quenching combinations become lubricant products.

The most important performance of the lubricating oil is the viscosity, oxidation stability and lubricity, they are closely related to the composition of the lubricating oil fraction. Viscosity is an important quality indicators reflect liquid lubricants. The different conditions of use have different viscosity requirements. Heavy load and low speed mechanical selection of high-viscosity oil. The oxidation stability of said oil in the environment of use, the antioxidant capacity of performance due to temperature, oxygen in the air and metal catalysis. Oil oxidation, according to the conditions of use will generate small asphaltenes mainly carbon-like substance, was sticky lacquer-like substance or film, or the water content of the viscous material, thereby reducing or lose its performance. The lubricity said the wear properties of the lubricant.