EVALUATION OF THE LUBRICATION EFFICIENCY OF GREASES ACCORDING TO CRITERION OF WEAR EXPERIMENTALLY DETERMINED AT VARIABLE VALUES OF MOTION PARAMETERS
Journal Title: Tribologia - Year 2017, Vol 273, Issue 3
Abstract
The results of tribological investigations into the lubrication efficiency of greases in steel sliding pairs working in mixed friction conditions are presented. The lubrication efficiency was evaluated according to the criterion of wear determined by tribological tests conducted at variable values of motion parameters: load F and sliding velocity v. Wear volume VF(d), calculated from wear regression equations (wear d = f(p,v), was adopted as the lubrication efficiency criterion. Five different commercial greases currently available on the market and one in-house grease (a compound of grease 1S and two solid greases (6% PTFE and 5% Cu)) were tested. The experiment was conducted in a four-ball tester at five levels in accordance with the rotatable experiment design. A regression function with interrelated ball wear d, sliding velocity v, and applied load F, was formulated for each of the tested greases. Wear volumes VF(d) were calculated and conclusions were drawn.<br/><br/>
Authors and Affiliations
Michał KRAWIEC
Keywords
Related Articles
- EP ID EP240869
- DOI 10.5604/01.3001.0010.6135
- Views 62
- Downloads 0
Właściwości tribologiczne zwyrodniałych stawów synowialnych
W pracy przedstawiono wyniki badań, które mają na celu określenie wpływu stopnia zdegenerowania chrząstki stawowej człowieka na jej właściwości tribologiczne. Badania te przeprowadzono na drodze doświadczalnej, z wykorzy...
PHYSICO-CHEMICAL AND TRIBOLOGICAL PROPERTIES OF DITHIOPHOSPHORIC O,O-DIESTERS
The paper contains information about the synthesis of physicochemical and tribological properties of dithiophosphoric acid derivatives. Their thermal, hydrolytic and oxidative decomposition and adsorption on solid surfac...
INVESTIGATION OF THE INFLUENCE OF A SURFACE ACTIVE AGENT ON LUBRICATING PROPERTIES OF OIL USED IN MARINE DIESELS
The paper presents the results of lubricating property tests on Marinol RG 1240 motor oil used in trunk piston marine diesel engines and modified by the Motor Life Professional surface active agent. The test results were...
THE INVESTIGATION RESISTANCE TO WEAR THE SURFACE LAYER OF MATERIALS APPLIED ON THE ELEMENTS OF THE ENGINE OF COMBUSTION AFTER LASER TEXTURING
The results of laboratory investigations were introduced in the work in the range of the measurement of the coefficient of friction and resistance on waste in the conditions of the friction of the top layer of grey cast...
Wpływ urządzenia badawczego i parametrów procesu tarcia na rozrzut zużycia
Wartości zużycia uzyskiwane w badaniach tribologicznych dla tych samych skojarzeń materiałowych uzyskiwane w porównywalnych warunkach mogą różnić się znacząco. Wpływ parametrów procesu tarcia na porównywalność i powtarza...