Stanovení závislosti mezi tvrdosti a pevnosti železničních kol

Abstract

The present thesis under the name of “Determination of dependence between hardness and strength of railway wheels“ describes a way of obtaining values of relation among material tests focused on hardness and strength of railway wheel. Herewith it is described a material specification of the railway wheel designed for freight transport, heat treatment and last but not least, mechanical properties testing itself. All individual processes necessary for railway wheel production (before machining) are described generally, following with a description of how the processes are being executed in the BONATRANS GROUP company. The final part deals with a relation between individual values of hardness and strength of the railway wheel where the individual results of testing after conversion are compared with relation coefficients procured from technical literature.