| 摘要 |
<p>PROBLEM TO BE SOLVED: To highly accurately execute the temp. control of a material to be rolled and to reduce the cost of equipment by restaining interference with control that is executed to make the temp. of the material to be rolled into the target temp. SOLUTION: Finishing temp. T2 , T3 are compared with allowable temp. region, a 1st pattern or the 2nd pattern for showing rolling speed procedure as described later based on the compared result is decided and imparted to an output part 5 with a pattern deciding part 4. When the 2nd pattern, for example, is imparted, by giving a rolling speed changing command to a circumferential speed controller 18 of each stand #1-#7 at a timing when a prescribed time elapses after the 2nd trigger is given the circumferential speeds of work rolls 11 of each stand #1-#7 are simultaneously changed with the output part 5 so that operation for changing the rolling speed at the 7th stand #7 from Va to Vb is started after a thickness changing position P is passed through the 7th stand #7.</p> |
