Compressor oil composition

Abstract

The invention provides a compressor oil compound which comprises the following materials on the basis that the weight of base oil is 100 percent: (1) a main amount of hydrogenization mineral oil base oil; (2) 1 to 15 weight percent of ashless dispersant; (3) 0.01 to 1 weight percent of the combination of half-hindered phenolic antioxidant or amine antioxidant and half-hindered phenolic antioxidant; (4) 0.05 to 2 weight percent of antiwear additive; (5) 0.01 to 0.5 weight percent of friction modifier; (6) 0.01 to 0.2 weight percent of metal passivator; and (7) 0 to 1000ppm of antifoamer. The compressor oil has the advantages of high viscosity index, excellent lubricating property and good oxidative stability.

Description

technical field [0001] The present invention relates to a compressor oil composition. Background technique [0002] Compressor is a general-purpose machine, widely used in petrochemical, machinery manufacturing, construction, mining, metallurgy, textile, food and other fields of national economy and people's life. Due to the continuous progress and development of technology, screw compressors are becoming more and more perfect, and they have the advantages of some centrifugal compressors and reciprocating piston compressors, and have become the mainstream of compressors. At present, domestic screw compressors have also been widely used. [0003] Compressor oil, especially the mainstream screw compressor oil, is a special lubricating oil, which mainly plays the role of lubricating the screw, bearing, connecting rod and other transmission parts of the compressor, as well as cooling and cleaning. In recent years, long life is the main development direction of screw compressor...

AI Technical Summary

Problems solved by technology

However, it is difficult to meet the long-life requirements for mineral oil-type screw compressor oils using general hindered phenolic antioxidants

[0005] Regarding the use of semi-hindered phenolic antioxidants as one of the main antioxidants for compressor oils, there are no literature or patent reports at home and abroad.