| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method of rolling control in a hot finishing mill and the hot finishing mill by which the variation of mass flow at the nose of a rolled stock is suppressed by preventing the initial mass-flow disturbance with high accuracy when the nose of a material to be rolled is bitten with a stand. <P>SOLUTION: In this method of rolling control in the hot rolling mill having a plurality of stands, the amount of the loop of the rolled stock between the i-th stand and the (i+1)th stand is calculated on the basis of the thickness on the outlet side of the i-th stand which is measured with an interstand thickness gage 19, a looper angle between the i-th stand and the (i+1)th stand, the rolling load at the (i+1)th stand, the amount of gap at the (i+1)th stand and the speed of the main motor of the (i+1)th stand and the speed correction of the speed of the main motor of the i-th stand is performed in accordance with this calculated amount of the loop. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
