| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling method of a hot rolled steel strip by which variation in the thickness and width in the longitudinal direction of the hot rolled steel strip due to skid marks is reducible. SOLUTION: In a rolling method by which a slab heated in a heating furnace 1 is made into a rough bar by rough rolling with roughing mills 2 and, after heating the rough bar over the entire in the width direction with a heating device 5, the rough bar is made into a hot rolled steel strip by executing finish rolling with finishing mills 7, at the time of heating the position on the rough bar equivalent to the low-temp. part of the slab in the variation in the temp. in the longitudinal direction of the slab where is generated in the heating furnace 1 with the heating device 5, heating is executed so that the temp. after heating the low-temp. part of the slab becomes higher than the temp. after heating adjacent non-low-temp. parts of the slab.
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