| 摘要 |
[Problem] To provide an apparatus, method, and program for acquiring data samples under various conditions without compromising product quality during a rolling operation. [Solution] The present invention comprises: a roll gap control unit (111) which controls a roll gap of a plurality of rolling stands (1) through a feedback control so that a plate thickness of a rolled material rolled by the plurality of rolling stands (1) approaches a preset plate thickness; a setup calculation unit (105) which sets a change in a line speed; a rolling reduction change specification calculation unit (108) which sets a sequential change in the preset plate thickness for controlling the roll gap of the plurality of rolling stands (1) other than the rearmost one based on the sequential change in the line speed; and a friction coefficient calculation unit (102) and a deformation resistance calculation unit (103) which calculate a friction coefficient and a deformation resistance based on an actual measured value of a rolling state of rolling conducted based on the preset plate thickness and the line speed set to be changed sequentially. |
