Zhulkovska I. The Improvement of Ladle Locks on the Base of Their Thermal Conditions Research

The thesis deals with solving of actual scientific and technical problem of the improvement of ladle gate locks design on the base of thermal conditions research under different methods of steel casting.The methods of complex radiation and convective heat exchange calculation have been developed and applied. Mathematical model of thermal conditions of ladle gate lock unified for different technological performance of metal casting into ingots and stocks has been offered. The appropriateness of heat transfer have been numerically investigated and spatial distribution of temperature in a frame, refractory plates and nozzle-collector of ladle gate lock under different methods of steel casting into ingots and in machines of continuous stock casting has been obtained. On the base mathematical modeling results analysis a new rational design of gate lock with small-sized refractory plates has been developed. Research and industrial testing has been conducted and economical expediency and technological potentialities of its wide employment has been proved.