Improvement of tribological characteristics of coupling parts "shaft-sleeve" with polymer and polymer-composite materials

Authors

  • V.V. Aulin Central Ukrainian National Technical University
  • S.V. Lysenko Central Ukrainian National Technical University
  • A.V. Hrynkiv Central Ukrainian National Technical University
  • M.V. Pashynskyi Central Ukrainian National Technical University

DOI:

https://doi.org/10.31891/2079-1372-2022-105-3-96-107

Keywords:

tribological characteristics, polymer material, polymer-composite material, conjugation of parts, heat resistance

Abstract

The article provides an analytical justification of the flow of tribological processes of coupling of "shaft-sleeve" parts, which simulates the functioning of sliding bearings and cylindrical joints of machines. The main attention is paid to such characteristics as contact pressure, static and dynamic forces, the criterion of the product of the total pressure on the sliding speed, the work of friction forces and its transition into thermal energy in the friction zone for polymer (based on polyamide P-68) and polymer-composite coatings (based on P-68 with kaolin filler) on the working surfaces of the parts. A comparative analysis of the functioning and tribological characteristics of the couplings of parts without coatings is presented.

Experimentally, on the basis of tests of samples on the MИ-1M friction machine, a significant reduction in wear and an increase in the relative wear resistance of samples with polymer-composite coatings in the modes of friction without lubrication (by 1.3...1.4 times) and marginal friction (in 1.2...1.3 times), as well as a decrease in the temperature in the friction zone (365 K and 347 K) compared to the polymer coating.

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Published

2022-09-26

How to Cite

Aulin, V., Lysenko, S., Hrynkiv, A., & Pashynskyi, M. (2022). Improvement of tribological characteristics of coupling parts "shaft-sleeve" with polymer and polymer-composite materials. Problems of Tribology, 27(3/105), 96–107. https://doi.org/10.31891/2079-1372-2022-105-3-96-107

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