| 摘要 |
PROBLEM TO BE SOLVED: To provide a plate thickness control method of a rolling machine for reducing a plate thickness variation separate from a roll gap variation, and also preventing AGC control from promoting the plate thickness variation by roll eccentricity, by operating a roll gap by using a command value of taking into consideration a variation in a roling load by the eccentricity of a rolling roll, when executing the AGC control such as BISRA-AGC and absolute value AGC.SOLUTION: A plate thickness control method of a rolling machine 1 of the present invention is a plate thickness control method for controlling a plate thickness of a rolling material W rolled by one or a plurality of rolling stands 2 provided in the rolling machine 1, and when executing AGC control for operating a roll gap of the rolling stands 2 on the basis of a rolling load detected by a load detector 5 provided in the rolling stands 2, in the AGC control, the roll gap is operated on the basis of a value of subtracting a load variation component by roll eccentricity from the rolling load detected by the load detector 5. |
