| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of rolling a hot-rolled steel strip by which surplus width is further reduced in a hot rolling line, on which a sizing press is installed, without reconstructing equipment and without confusing a hot rolling process. Ž<P>SOLUTION: A slab width meter 3 is installed on the inlet side of the sizing press 4; the slab width on the inlet side of the width press is measured in a plurality of parts in the longitudinal direction of the slab with that slab width meter; the slab width data transmitted from a host computer 6 and the measured value data of the slab width on the inlet side of the width press are compared every parts at the top end and the tail end about the obtained measured data of the slab width on the inlet side of the width press; and, when deciding that the measured value data on the inlet side of the width press is proper, the measured value data of the slab width on the inlet side of the width press is used as the initial value of the slab width in setting calculation instead of the slab width data transmitted from the host computer. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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