METHOD FOR PREDICTING BREAKOUT IN CONTINUOUS CASTING

摘要

PURPOSE:To predict surely the breakout of an unsolidified billet to be drawn from a casting mold by measuring the amplitude value of the oscillating mold and knowing the lubricating condition of the mold and solidified shell from the change in the amplitude value thereof. CONSTITUTION:A displacement meter 6 which measures the displacement of the casting mold 2 oscillated by an oscillation frame 5 is provided to a mold frame 3 in continuous casting of a steel. The amplitude value of the oscillating mold 2 is measured by the meter 6 and the lubricating condition between the solidified shell 8 of a molten steel 7 poured into the mold 2 and the mold 2 is known from the change in the amplitude value. The generation of the breakout of the unsolidified billet 9 to be drawn from the mold 2 is predicted from said condition.