| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a continuous casting method and a continuous casting apparatus of steel capable of obtaining a cast slab of excellent internal quality and less center segregation and center porosity irrespective of a crater end shape. <P>SOLUTION: When continuously casting a cast slab by using a continuous casting apparatus with a light rolling-reduction zone being arranged for drawing the cast slab while executing the light rolling-reduction thereof by gradually narrowing the opening of rolls holding the cast slab at the terminating end of solidification of the cast slab, the crater end shape of the cast slab is obtained, and when the crater end shape is not flat, the light rolling-reduction is executed on an upstream side section of the light rolling-reduction zone according to the crater end shape with the priority being placed on either a center portion in the width direction of the cast slab, or both ends in the width direction thereof. <P>COPYRIGHT: (C)2012,JPO&INPIT |
