| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot rolling method of a steel slab capable of reducing edge roughening defects without increasing a fuel unit consumption.SOLUTION: In a hot rolling method of a steel slab in which a steel slab 2 extracted from a heating furnace 1 is subjected to hot rolling, to be thereby finished into a hot rolled coil, the whole area of the width end side surface 2a of the steel slab 2 is subjected to forced cooling to a transformation point temperature at which phase transformation to α-phase occurs or lower in a pre-stage until reaching a hot rolling stage. |
