Abstract
This part of the article goes on to describe the new features of reducing the force of resistance to sliding in the ice sports. It presents the results of experimental studies conducted in two stages. The first stage identified by contact angles skate blades after standard preparation and various kinds of additional processing. Results of the first research stage on the experimental stand and the real ice object confirmed hydrophobization blades sliding surface after laser processing, as well as the maximum reduction in the forces of resistance to sliding on the ice samples with polished surface and the subsequent creation of structure “double roughness.” The second stage of testing has determined the range of concentrations of highmolecular compounds in the surface layer of the ice coating, wherein the liquid film in the contact area has a minimum surface tension and adhesion paired with skate selected in the first stage. Analysis of the results of experimental studies has shown that the lowest frictional force on the ice skate observed with minimal contact area between the surface of the blade and the liquid film and minimal molecular interaction forces on the surface. Keywords: structure at “double roughness”, laser processing, sliding friction, lotus effect.
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