| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for manufacturing a steel sheet for minimizing the overall cost of energy necessary to heat a material to be rolled in manufacturing equipment for the hot-rolled steel sheet having a heating device between a roughing mill and a finishing mill. SOLUTION: A slab is heated with a heating furnace according to the heating temperature of a slab to which the lowest heating temperature is specified, and the extracted slab is heated with the heating device so that the target temperature at the outlet of the finishing mill is obtained.</p> |
