| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an instrument for measuring the interval of rolls for a continuous caster, wherein the abnormality of bearing for receiving the roll shaft can be detected at early time by measuring the interval of the rolls only at one time. SOLUTION: The method for measuring the interval of the rolls for the continuous caster, is characterized in that in the method for measuring roll interval, that is for measuring the interval of the faced roll pair 2 by passing the roll interval measuring instrument 1 through in a cast slab passage of the continuous caster, at least at two positions in the width direction of the cast slab and two positions in the casting direction, the interval D of the roll pair, is measured, the interval D of roll pair is divided into a factor W having a fixed value independently of roll-rotation and a factor variable in a sinusoidal state depending on the roll-rotation, and the factor variable in the sinusoidal state is varied in phase at two positions in the width direction of the cast slab and also, this amplitude of vibration (a) is kept to have a fixed ratio at two positions in the width direction of the cast slab, and based on the measured result of the interval of the roll pair 2, the factor W having the fixed value is calculated. COPYRIGHT: (C)2006,JPO&NCIPI
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