ANALYSIS OF THE TEMPERATURE CHANGE OVER THE CONTINUOUS INGOT LENGTH ON THE PARAMETERS OF ROUND BAR ROLLING PROCESS

摘要

The paper presents results of theoretical and experimental studies on the effect of feedstock end overcooling before the first rolling stand on the plastic flow of metal and on the energy and force parameters during bar rolling process. From the obtained investigation results it has been found that the uniform heating of the feedstock in the stepped furnace does not insure the uniform plastic flow of metal over the rolled band length. Therefore, it is necessary to modify the method of feedstock heating in the stepper furnace in order to obtain a uniform temperature over the length of the feedstock before the first rolling stand.