Anti-extreme pressure engine oil

Abstract

The present invention discloses extreme pressure engine oil comprising the following raw materials in parts by weight: 95-98 parts of base oil with less than 3% of sulfur and more than 94% of saturated hydrocarbons, 0.05-0.8 part of a semi-hindered phenol type antioxidant, 0.1-0.7 part of an anti-wear agent, 0.05-0.3 part of a metal deactivating agent, 0.2-0.9 part of screen phenol, 0.4-1.5 parts of sulfur phosphate, 0.05 - 0.7 part of ZDDP (T202), 0.3-1.2 parts of benzotriazole amine salt, 0.06-0.5 part of a benzotriazole derivative, 2-5 parts of dimethylsilicone fluid and 0.1-0.5 part of an anti-foaming agent. The extreme pressure engine oil is lubricant oil having good oil sludge control and dispersion capability, excellent high temperature oxidation stability, extreme pressure lubrication, rust and corrosion resistance, anti-foaming property and water separation characteristic, can withstand heavy loads and impact loads, and can reduce mechanical wear.

Description

Technical field [0001] The invention relates to the field of petrochemical industry, in particular to an extreme pressure resistant engine oil. Background technique [0002] The engine is the heart of the car. There are many metal surfaces in the engine that move by friction. These parts move fast and the environment is poor. The working temperature can reach 400°C to 600°C. Under such harsh working conditions, only qualified lubrication is available. Oil can reduce the wear of engine parts and prolong the service life. However, some industrial gas turbines, large gas and steam combined cycle turbines, variable speed transmission gearboxes and steam turbine compressor units work under high pressure and require some extreme pressure lubricating oil. General engine oil cannot meet the demand. Summary of the invention [0003] Aiming at the shortcomings of the prior art, the present invention provides a kind of anti-extreme pressure engine oil, which has good sludge control and disp...

AI Technical Summary

Problems solved by technology

[0002] The engine is the heart of the car. There are many metal surfaces that rub against each other in the engine. These parts move fast and the environment is poor. The working temperature can reach 400°C to 600°C. Under such harsh working conditions, only qualified lubrication Only oil can reduce the wear of engine parts and prolong the service life, but some industrial gas turbines, large gas and steam combined cycle turbines, variable speed transmission gearboxes and steam turbine compressor units work under high pressure and need some extreme pressure lubricating oil. Ordinary engine oil can not meet the demand