Casting slab cutting length control method, casting slab cutting length control device, and casting slab manufacturing method

摘要

PROBLEM TO BE SOLVED: To control a cutting length of a casting slab and control a cutting length of a casting slab so as to reduce the difference between the target weight of the casting slab and the weight of the actually manufactured casting slab and to minimize the margin. To provide equipment and methods for manufacturing cast slabs. SOLUTION: This is a method for controlling the cutting length of a cast slab in which a continuously cast cast strand is cut to obtain a cast slab having a target length, and the short side surfaces of the short side surfaces on both sides in the width direction of the cast strand are controlled. Using the measurement step (step S1) for measuring the position in the width direction in the thickness direction, the step (step S2) for calculating the representative cross-sectional area of the cast strand using the measured measurement value, and the calculated representative cross-sectional area. , A step of determining the cutting length of the casting slab to be cut (step S5), and a step of cutting the casting slab at the determined cutting length (step S6). [Selection diagram] Fig. 4