Features of Local Plasma Electrolytic Treatment of the Lateral Surface of a Rotating Cylinder

The article considers the features of the local plasma electrolytic treatment by the jet feed of an electrolyte onto the side surface of a rotating cylinder made of low-carbon steel. The influence of hydrodynamic parameters of the treatment and voltage on the electro- and thermosphysical characteristics of the process was studied. The optimum values of the electrolyte flow rate, the nozzle diameter and the distance between the sprayer and the treated surface were established which meet the developed conditions for the efficiency of the local plasma electrolytic treatment. Volt-ampere and volttemperature characteristics of the process were obtained which have common patterns with the treatment by the immersion method when the operating voltage range is shifted towards higher values. A technique for determining the heat flux into a metal sample during the local treatment with an electrolyte jet was developed based on temperature measurements performed outside the heated area, using which the features of the heat exchange in the electrolyte – vapor-gas layer – rotating cylinder-electrode system were studied.