| 摘要 |
<p>PURPOSE:To provide a changing method for traveling setting of a rolling mill which can improve sheet thickness accuracy by restraining the deviation of a sheet thickness and the variation of a rolled load on the outlet side after a flying setting is changed in the minimum even when the rolled load is not correctly estimated. CONSTITUTION:When variable mill rigidity control which is treated by the change of DELTAP2.alpha in terms of the roll gap is carried out to the mill rigidity coefficient M in each of a control timing between starting change of a traveling setting and changing the traveling setting of a preceeding material, a control timing in passing through a welded point and a control timing between passing through the welded point and changing the traveling setting of a succeeding material, an estimation error for the load is reduced, the variation of the load is constrained to the minimum and the deviation DELTAh2 of the sheet thickness on the outlet side is cut down by DELTAh2'.</p> |
