| 摘要 |
A method and device for rolling a metal plate material, the method and device being capable of stably producing a metal plate material having no camber or an extremely slight camber. The method and device are formed such that an upper roller assembly and/or a lower roller assembly have a mechanism for supporting work rollers by divided reinforced rollers each having three or more axially divided portions, and groups of the divided reinforced rollers support loads acting on the work rollers in both vertical and rolling directions. The method and device use a rolling machine and rolling equipment. In the rolling machine are provided the divided reinforced rollers each independently having a load-measuring device. The rolling equipment has at least a pair of pinch rollers for clasping a rolled material at the exist side. With the use of the rolling machine and the rolling equipment, left/right balance of force acting in the rolling direction from the pinch rollers on a material to be rolled and/or left/right balance of force acting in the rolling direction on the work rollers of the rolling machine through the material to be rolled are measured or calculated based on measured values. Then, an asymmetrical component of the degree of roller opening of the rolling machine is controlled based on the measured values of or the calculated values of left/right balance of force in the rolling direction.
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