Spyrydonov D. The development of the theory and improvement technologies of semi continuous casting for fire-refined copper

Object of study - the casting machines semicontinuous casting ingot rectangular copper fire refining. Purpose - to develop the theory and technology of the casting process of copper fire refining towards improving the quality of cast ingots by selecting rational configuration inside the mold cavity and to ensure rational hydrodynamic flows in the hole liquid copper. Used standard techniques tensile test, torsion to failure and to determine the resistivity, as well as methods of weight loss of the sample, and sessile drop Dorseya. Experimental study of liquid metal flow mixing were carried out on laboratory installation, which allows you to visualize the processes accompanying filling wells. For the simulation of casting used in modern monitoring devices temperature conditions , as well as a PC for statistical data processing . Developed further understanding of the basic properties of copper fire refining as a new structural material , and about the effect of phosphorus on the thermal conductivity of copper fire refining , its temperature and the softening temperature of the onset of recrystallization. Further developed ideas about the effect of flows in a copper mold on the formation of the hole in the casting of copper fire refining semi-continuous casting method , and of the formation of semi-continuous casting of ingots of copper fire refining , which allowed to improve the configuration of the inner cavity of the mold. Use industry - metallurgy .