| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a continuous casting method capable of casting slabs in a plurality of shapes differing in thickness using a common long side by replacement with short sides having widths corresponding to thicknesses of the slabs. <P>SOLUTION: There is provided the continuous casting method of casting slabs having N kinds of thicknesses by arranging N kinds of short sides 13 and 14, 13a and 14a, and 13b and 14b having widths corresponding to the thicknesses of the slabs to be cast in replaceable states between long sides 11 and 12 arranged opposite each other, and pouring molten steel in a mold space part V formed in a vertically through state, wherein N division gradient regions L<SB POS="POST">1</SB>, L<SB POS="POST">2</SB>, and L<SB POS="POST">3</SB>communicating with the opposite sides 11 and 12 except top parts are formed more in conformity with coagulation shrinkage profiles on coagulation start sides of the slabs determined by the widths of the short sides 13b and 14b, 13a and 14a, and 13 and 14 made narrower in width in order respectively, and molten steel surface height positions of the molten steel are set in the division gradient regions L<SB POS="POST">1</SB>, L<SB POS="POST">2</SB>, and L<SB POS="POST">3</SB>according to the widths of the slabs determined by the selected short sides 13 and 14, 13a and 14a, and 13b and 14b. <P>COPYRIGHT: (C)2013,JPO&INPIT |
