Сhichkarev E. Development of theoretical bases, design and implementation resource-saving technologies high-quality steel-furnace treatment

Purpose: The theoretical generalization, experimental research and development of complex technology of deoxidation and ladle steel treatment, providing the deoxidats saving and improvement of the metal quality. The object of study is the processes of the production of quality converter steel with ladle treatment. The subject of study - physico-chemical, thermal and hydrodynamic processes, technological solutions on complex deoxidation and vacuum-carbon deoxidation, modification and refining of steel using alkaline earth elements. Methods - physical and mathematical modeling, the production experiment. Novelty - a method of forecasting the specific consumption of alkaline-earth metals using model of associated solutions; established a relation between the mass fraction of carbon in the molten steel of varying scope and activity of dissolved oxygen; the empirical equation to calculate the activity of silica in the slag is received; establishes the conditions for reducing the contamination of rolled tubular steel grades oxide inclusions in the processing of calcium; the parameters of the two-stage development of rail and tube steel with calcium is received, the conditions for reducing contamination become oxide inclusions in the complex treatment by calcium and magnesium are identified. Results - a set of resource-saving steel treatment technologies for sheet metal and rails that enhance the quality of metal is developed. Scope of Use - Iron and steel (steel ladle treatment).