Features of electrochemical-mechanical running-in of chrome-plated piston rings to the cast-iron surface of the cylinder liner under different friction modes

  • V. Aulin
  • T. Zamota
  • A. Hrynkiv
  • S. Lysenko
  • M. Chernovol
  • A. Chernai
Keywords: running-in, electrochemical - mechanical running-in (ECMR), engines, friction mode, piston ring, liner.


In this paper, the laws of the electrochemical - mechanical running-in (ECMR) are considered. For elimination of inaccuracies of form of details and errors of assembling mechanism expose to running-in which running- in of the surfaces take place. The most effective factor of acceleration of running-in is to use the combined processes at running- in surfaces. One of them is ECMR..

The results of experimental studies have shown that the the processes of ECMR pass in the environment of electrolyte, which influences efficiency of process, mode of friction at running-in pair and speed of electrochemical reactions. The essence of  ECMR consists of the following: working motion for details of mechanism is given, between details an electrolyte is pumping and cutoff alternating current. Due to joint electrochemical-mechanical influence there is a rapid adaptation of one surface to other. The most effective factor of  ECMR is electrochemical, at which it is easy to electrochemical stripping of material from the run-in surface due to anodal dissolution at the hydrodynamic lubrication rate.


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