CHANGING THE TECHNICAL-ECONOMIC INDICES OF RAIL-STEEL PRODUCTION BY SORTING SCRAP BASED ON ITS CONTENT OF RESIDUAL ELEMENTS

摘要

Features of the technology used to make rail steel at the EVRAZ ZSMK combine are discussed along with the requirements on the steel's contents of residual elements. A description is given of the step-by-step introduction of a process for sorting scrap to make rail steel, the sorting being based on the scrap's content of residual elements. A comparative analysis is made of changes in the technical-economic indices of rail-steel production before and after the introduction of the sorting operation and the reasons for those changes are explained. The cost-effectiveness of the measures that were implemented is also evaluated.