INVESTIGATION OF PERFORMANCE CHARACTERISTICS OF MINERAL HYDRAULIC OILS CONTAINING MEDIUM ALKALINE CALCIUM-ALKYL SALICYLATE IN COMBINATION WITH ANTI-WEAR ADDITIVES

Abstract

The current stage of economic development in the developed countries of the world is characterized by high rates of development of high technology industries, among which an important place in the oil refining industry is given to high quality lubricating oils. Hydraulic oils for industrial equipment make up a significant part of the total production of industrial oils. In recent years, due to the modernization of the designs of hydraulic systems and the re-equipment of enterprises, the requirements for the quality of oils have increased significantly. To ensure competitiveness in the domestic and foreign markets of hydraulic oils, as well as to reduce dependence on foreign additive manufacturers, it is necessary to carry out systematic work to organize the production of highly efficient additive packages[1].To achieve this goal, it is necessary to establish the relationship between the structure of the alkyl radical in the composition of commercial di-alkyl-di-thiophosphate (ZDDP) additives and the key performance properties of hydraulic oils.