METHOD FOR OPERATING CONTINUOUS CASTING MACHINE

A primary object of this invention is to provide a method for operating a continuous casting machine with which a mold can oscillate with a predetermined oscillation waveform since the start of operation of an oscillator. This invention is a method for operating a continuous casting machine where a slab is withdrawn from a mold for continuous casting while the mold is oscillated in a vertical direction, the method comprising: oscillating the mold with an oscillation waveform represented by the following formula (1) by selecting a value of Õ according to a value of b so that the following formula (1) satisfies r(0) = 0: r t = S / 2 sin Ét + Õ + bcos 2 Ét + Õ + b where r(t) is displacement of the mold (mm), S is a vibration stroke of the mold S (mm), É is angular velocity (= 2Àf) (rad/s), f is oscillation frequency of the mold (Hz), t is time(s), Õ is the initial phase (°), and b is a non-sine coefficient (0 < b ‰¤ 0.25).