Studying anti-friction and anti-wear properties of marine lubricants containing layered friction modifier

The paper highlights the results of anti-friction and anti-wear tests samples lubricating media containing a layered friction modifier - molybdenum diselenide. main variable test conditions are load on samples, volume concentration in oil, preliminary storage time composition before testing. evaluation criteria mass wear intensity, coefficient. Each eight cycles was implemented tribotechnical installation an original design using cylindrical contact type. resource indicators transferred from model to real tribological unit “ring-cylinder” marine diesel engine 6ChSP 18/22 were evaluated. According studies, effect increasing installation, pair alloyed gray cast iron, revealed, as result which annular movable sample increases, interface decreases 1.13-1.23 times. greatest influence is lubricant diselenide additive. It has been proven that deterioration properties (an increase average surface temperature segment force) largely affected by decrease additive oil. found out serious changes indicated estimated parameters valid for smallest loading step samples. General recommendations formulated use antiwear additives considered studies. proved storing compositions with possible period no longer than 3-4 days at given concentrations range 0.5-1.0%, since if this exceeded 25-40%, CPG may be halved increased its piston rings cylinder liners.