Petryshchev A. Development of theory and improvement of resource-saving technologies of production materials from technogenic waste containing alloying refractory elements

Subject of inquiry - process of reception of refractory alloying materials on the basis of technogenic waste. The purpose of dissertational work is development of physical and chemical rules of restoration by carbon of refractory alloying elements and resource-saving production engineering of salvaging of refractory elements from technogenic waste by development of technological parametres of metallization of a calx of a rapid tool steel in capsules and smeltings of an alloy for alloying and a deoxidation. Theoretical researches are based on: theories metallurgical and weight-changing processes and methods of practical calculations in thermodynamics of chemical reactions; methods of mathematical modelling. Experimental researches switch on: thermogravimetric control chemical transformations on installation with weight-controlling device; chemical analysis inspection of materials with quantometer use; X-ray structure analysis of samples with use diffractometer; Researches of a microscopic structure of samples on raster electronic microscopes with system of X-ray microanalysis. Had development scientific representations about agency of a time of thermal machining on restoration extent metallized technogenic raw materials and on phase composition of products of restoration. Scientifically-practical results have been introduced by rapid tool steel manufacture in industrial conditions at factory PJSC "Electrometallurgical Works "Dneprospetsstal" named after A.N. Kuzmin". Application branch - metallurgy