Composite screw type air compressor oil

Abstract

The invention discloses composite screw type air compressor oil which comprises, by mass, 10-15 parts of raw material synthesis base oil A, 8-12 parts of synthesis base oil B, 20-25 parts of PAG polyether, 20-30 parts of poly-alpha-olefins, 0.1-1.4 parts of alkylated diphenylamine, 0.8-2 parts of 2,6-di-tert-butyl mixed phenols, 0.05-0.3 part of methyl benzene triazole derivative, 0.05-0.3 part of benzene triazole fatty acid amine salt, 10-12 parts of tributyl phosphate, 1.2-2.2 parts of dialkyl dithiophosphate, 0.005-0.05 part of methylsiloxane mixture or liquid ester copolymer, 3-7 parts of dialkyl group naphthalene metal organic sulfonate and 17-19 parts of fat sulphide isobutene. The composite screw type air compressor oil has the advantages of good antioxidation stability, demulsibility and anti-corrosion and anti-rust property, extremely good defoaming performance, excellent viscosity-temperature property and the like. Compared with mineral compressor oil, the energy is saved, oil consumption is lowered, environment pollution is reduced, the service life is prolonged, the performance index reaches the standard of 46# compressor oil, and the compressor oil is used for air compression system mechanical equipment.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil, and in particular relates to a compound screw air compressor oil. Background technique [0002] Air compressor oil is mainly used for the lubrication of the moving parts of the compressor cylinder and the exhaust valve, and plays the role of anti-rust, anti-corrosion, sealing and cooling. Since the compressor is always in an environment of high pressure, high temperature and condensed water (for air compressors), the air compressor oil should have excellent high temperature oxidation stability, low carbon deposition tendency, suitable viscosity and viscosity temperature Performance and good oil-water separation, anti-rust and anti-corrosion properties, etc. Lubricating oil with too low viscosity is not easy to form a strong enough oil film, which will accelerate wear and shorten the service life of parts. On the contrary, if the viscosity of the lubricating oil is too high, it will incr...

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Problems solved by technology

[0005] However, the common problem of ashless screw air compressor oil in the existing market is that there is a lot of residual carbon, which cannot be overcome by asphalt and colloid, resulting in gelling of the head of the ashless screw air compressor and serious equipment problems.

Vegetable oil has many advantages as the base oil of biodegradable lubricants, but the thermal oxidation stability and low temperature fluidity are poor. Improving the oxidation stability and low temperature performance of vegetable oil is the key to its use as air compressor oil base oil

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