| 摘要 |
PURPOSE: A width control system and method for rougher mill in a hot rolling process are provided to generate intentional camber by using an edger roll installed in a rolling system to complement the camber. CONSTITUTION: A width control method for rougher mill in a hot rolling process comprises the following steps. A driving speed of an edger roll installed on the left and right sides of an entrance of a rougher rolling device in the vertical direction is controlled to block generation of camber. A camber problem in the width direction which may be generated in a slab extracted from a heating furnace is solved. The driving speed of the edger roll is differentially set on the basis of a temperature deviation in the width direction the slab.
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