| 摘要 |
<p>PURPOSE:To stably and highly precisely control the continuous rolling by correcting the roll circumferential velocity command value at the timing that the joining point of the preceding and succeeding materials enters the continuous rolling mill. CONSTITUTION:In the continuous rolling mill joining an preceding material and a succeeding material of the different steel kind, thickness, width and material temperature, the controlling is executed by tracking the joining point of both materials, detecting the reaching of the joining point of both materials at each stand, and changing the roll gap and the roll bending force of each stand on the lamp like from the setting value of the preceding material to the setting value of the succeeding material. On the other hand, the measured information of each stand obtained with the measuring system before the joining point enters the continuous rolling mill and the information obtained by the computation are stored, and the roll circumferential velocity command value of each stand is corrected by executing the mass-production computation at the timing that the joining point of both materials enters the continuous rolling mill by using these stores values and the present value.</p> |
