METHOD FOR CONTROLLING THE LEVEL OF MOLTEN METAL FOR A CONTINUOUS CASTING MACHINE

摘要

A method for controlling the level of molten metal for a continuous casting machine provided with a non-solidified rolling device in order to control a change in level of the molten metal due to the change in the operating conditions such as the drawing speed, and rolling speed and improve a product yield, the method comprising the steps of: (i) estimating disturbance imparted by a change of the operating conditions of a continuous casting machine to the level of molten metal before the change occurs that causes a molten metal level fluctuation; (ii) obtaining a correcting amount of the controlling instruction that can remove the estimated disturbance and a delay time required for the movement of a molten metal pouring means caused by an instruction including the correcting amount; and (iii) providing a control instruction to which the correcting amount is added earlier by a time equal to the delay time than the initiation of the change of the operation. <IMAGE>