Increasing the Wear Resistance of Materials in Friction Vapors of Top-Mose Devices Taking into Account Hydrogen Wear

Abstract

In the article, the value of external and internal hydrogen in the contact zones of microprotrusions of brake friction pairs is highlighted. The interaction of external hydrogen with internal hydrogen located in the subsurface layer of the metal friction element is illustrated. In friction pairs with electrothermomechanical frictional interaction, the source of hydrogen is the surface layer of the polymer lining during the cracking process. In the study of hydrogen wear, the following were considered: adhesion, adsorption, diffusion in electric and thermal fields, as well as an assessment of the stress-strain state of brake friction pairs. A method for industrial research of friction pairs of band-shoe brakes of drawworks is described, which prevents the release of hydrogen from the steel surface of the pulley rim by an electric field with the same charges, which restrict the movement of hydrogen ions.