| 摘要 |
<p>PURPOSE:To provide a hot continuous rolling method by which a plate thickness with a good accuracy is stably obtained. CONSTITUTION:The method is constituted of the following: at the point of time when a material 1 to be rolled passes through a reference stand, a rolling load, thickness on an exit side, advanced ratio and also the advanced ratio on one upstream side of the above reference stand are each measured by a load cell L4, thickness meter 22, and advanced ratio meters 24, 23; based on these measured values, the plate thickness on the entrance side of the above reference stand F4 is calculated; based on this calculated value and errors between the above measured values and the set values which are the plate thickness on the entrance side, the plate thickness on the exit side of the above reference stand F4 and the rolling load that are preliminarily set from the initial data of the material 1 to be rolled by means of an arithmetic means 20, the corrected values of the roll divergence and of the revolving speed of the stand on the downstream side from the reference stand F4 are calculated; and the signals of these corrected values are outputted to control devices C5-C7 for drawing down position and control devices R5-R7 for roll revolving speed by an arithmetic device 21.</p> |
