Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

Personal portfolio

RESEARCH OF ANTI-FRICTION PROPERTIES OF OIL ADDITIVES FOR TECHNICAL SYSTEMS OF TRANSPORT UNDER THE INFLUENCE OF AN ELECTRIC FIELD

Voronin S.V. 1 Grunyk I.S. 2
1 Ukrainian State Academy of Railway Transport
2 Rivne management of railway traffic on Lviv railway
The research on the influence external electric field on the anti-friction properties of the additive - stearic acid in axle oils. Based on the physical understanding of the molecular interactions of the additive in a non-polar hydrocarbon solvent (base oil), developed a scheme for the transformation of micellar aggregates in the germs of a nematic liquid crystal under the influence of an external electric field. The resulting external field aggregates have high surface activity, as a consequence, the friction surfaces of formed on the boundary layer with improved antifrictional properties. It was established experimentally reducing the frictional moment in the test pair (steel roller - brass block prepared with babbit overlaying welding) depending on the strength of the external field and the concentration of the additive in the oil. The experimental results confirm the possibility of applying the method of electrostatic processing on lubricating the slide bearings vehicles. Application of the method for motor-axle bearings of locomotives reduces the friction losses are more than twice.