Problems of Selection of Lubricants for Ethylene High-Pressure Compressors. 4. Investigation of antifriction properties of naphtene and polyglycol oils during high loading of solid lubricant pair

Abstract

The antifriction properties of naphtene and polyglycol oils during little loading with lubrication of pair bronze-tungsten-carbide-alloy WK-6 (WK-ll) and graphelon-20-WK-6 (WK-11) and high loading with lubrication of pair ball-bearing-high-chromium steel ShKh-15 - steel ShKh-15 are investigated. New correlations of viscous-and-thermal and antifriction properties of different polyglycol oils permit to creating effective composition on its base. The dependence of seizure loading during testing on FBFM on the molecular mass of different polyglycols, wear spot on the axial loading and boundary loading on concentration of additives in naphtene and mineral oils are found. The mean-square relative deviation of diameter of spot of wear from the spot by Hertz give generalization assessment of antiwear properties of lubrication oils.Key words: lubricant, ethylene compressors, four-ball friction machine, properties, bronze, graphelon-20, mineral, naphtene, polyglycol and polybutene oils.