| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a continuous casting method that determines whether the amount of light rolling reduction is within an appropriate range and reduces the central segregation of a slab even when an excessive load is applied to a light rolling reduction segment. <P>SOLUTION: The continuous casting method includes: a step of measuring displacement amount of a support 11 for supporting a frame holding a rolling reduction roller 7 for performing light rolling reduction of the cast slab 6; a step of measuring displacement amount of a disc spring 12 arranged on the support 11 for protecting the light rolling reduction segment 8 from the excessive load; a support determination step of determining whether the amount of light rolling reduction is within the appropriate range based on the displacement amount of the support 11 when the load applied to the slab 6 by the light rolling reduction segment 8 is not more than a predetermined value; an elastic mechanism determination step of determining whether the light rolling reduction is within the appropriate range based on the displacement amount of the disc spring 12 when the load applied to the slab by the light rolling reduction segment 8 is a predetermined value or more; and a step of changing an operating condition of the continuous casting based on a result of the determination. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
