DIFFERENTIAL THERMAL ANALYSIS OF CHARGE MATERIALS FOR THE PRODUCTION OF CHROMIUM-MANGANESE LIGATURE

This article investigates the physicochemical properties of initial charge materials in order to improve the efficiency of the production process of chromium-manganese ligature. The aim of the study was to determine the thermal characteristics of chromium and iron-manganese ores, as well as new silicon-aluminium alloys (ferrosilicoaluminium (FeSiAl), ferrosilicochromium (FeSiCr) dust, alumosilicomanganese (AlSiMn)). Differential thermal analysis (DTA) was employed to study the thermal behaviour of the materials, including melting and crystallization processes, phase transitions, and chemical reactions. The main part of the work discusses the theoretical principles of the DTA method, its applications, and provides a detailed analysis of the experimental results obtained. Particular attention was paid to the thermal properties of the initial raw materials and their changes during the process. Thermal analysis was carried out using the STA300 “Synchronous Thermal Analyzer”. The obtained data provide scientific evidence for improving the efficiency of chromium-manganese ligature production technologies. The practical significance of the study lies in the efficient utilization of chromium and iron-manganese ores and the enhancement of reduction processes through the use of new silicon-aluminium alloys.