The author presents a method for evaluating the impact of lubricant modification with copper particles based on the wear characteristics of tribological system elements. Tribological tests were conducted using friction machines: T and a four-ball apparatus.Tribological tests were carried out using tribological apparatus T and four ball machine.
1. JUSTIFICATION FOR CONDUCTING THE RESEARCH
Energy losses in a kinematic joint are caused, among other things, by the lubricant used. The chemical properties of the lubricant have a significant impact on these losses; however, properties related to the entire tribological system are no less important. An important issue is therefore the ability to predict the effects of using an appropriate lubricant depending on the operating conditions in a specific design solution. Lubricants – mainly oils, despite their primary advantages, which include: reducing friction resistance and wear, dissipating heat and wear products from the friction zone, damping vibrations, and protection against corrosion, do not solve the obvious problems of insufficient lubrication under extreme load and temperature conditions, nor the elimination of the so-called cold start, e.g., cold engine start (for the first dozen or so seconds, the engine is under-lubricated) [1-8]. Thus, the idea arose to introduce a supplementary additive (a low-friction lubricating additive – LFLA) into friction joints along with the oil, which could mitigate such effects. (…)
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Source: Logistyka Magazine