Determination of the Rational Composition of the Additive to Oil with the Use of the Katerynivka Friction Geo Modifier

Abstract

Studies of the formation of the optimal composition of Tribological additives to the base oil have shown the possibility of improving the characteristics of the tribosystem. It was revealed that this Tribological additive makes it possible to form functional surface layers that provide normal operating conditions for tribological conjugation of parts. Based on the optimization of the technical condition of the Tribological additives, the optimal values of each of its components are obtained. Optimization of the condition provided that the amount of wear should tend to a minimum, and the maximum load and loading of the weld should tend to a maximum. Based on the experimental database on the 4ball friction machine, an equation is obtained for each of the indicated response functions of the resulting features, based on which, with a desirability value of the order of 1.0, the composition of Tribological additives is obtained: from Katerynivka Friction geo modifiers; Sodium oleate, copper sulfate and phosphor TAT 33. It was found that the adding of TM-3-18k into the oil Tribological additives in the amount of 5.75 % under laboratory conditions can reduce the wear rate by 35.1 -35.5 %, the maximum load also increases by 17.1 -17.2 %, and the welding load increases by 5.3 -8.4 %. The analysis of experimental data shows that this Tribological additive can be operated at locally loaded parts of 1035 N, and the peak contact overload is up to 2385 N. The research results suggest that the proposed Tribological supplement makes it possible to improve the characteristics of the tribosystem. It can be useful to service and trucking enterprises during technical service and for the manufacturing of composite oil.

Creation of theoretical bases of tribotechnologies of running-in and restoration as means of effective increase of operational wear resistance of motor transport and mobile agricultural machinery

“…According to the results of studies [15,[17][18][19][20] related to the introduction of tribotechnologies of runningin and recovery, the best effect can be achieved with an average degree (up to 50%) of wear and tear of engines and transmissions of motor vehicles and mobile agricultural machinery. In practice, engines whose oils are treated with a tribocomposition of additives before running-in, or in the process of running-in have 3 times more service life and no breakdowns, in contrast to untreated motor oil [1,[21][22][23].…”

Development of a system for determining the informativeness of the diagnosing parameters for a cylinder­piston group in the diesel engine during operation

“…These materials have proven effective in the manufacture of parts that are operated in the conditions of the dusty environment; however, their use under a gradient sign-changing load in the diesel engines is not possible due to the limited temperature and mechanical characteristics of the materi-al. Significant contribution to increasing the reliability of components of machines' power units is rendered by various additives to working oils [24], as well as the compositions of synthetic and natural materials and tribologically active additives [25]. When using various additives, it is necessary to ensure a procedure of control over the technical condition of the mated parts as there may come a moment of the activation of their working surfaces' wear by the additives used.…”

Design of mated parts using polymeric materials with enhanced tribotechnical characteristics

“…It should be noted that each characteristic requires individual research on the concentration and content of fibers in the polymer. Several related studies examined the issue of improving the characteristics of tribo-mated parts by using a lubricant environment and tribo-active additives [25], geomodifiers [26], a complex involving lithium and fluoride soaps [27]. The tribological properties of mated parts with these additives are improved by 10...18 % only if there is an oil base, but, under dry friction modes, it is necessary to consider the possibility of adding to the matrix.…”