| 摘要 |
<p>PURPOSE:To roll products smoothly with high dimensional accuracy by detecting the breadth sizes, etc. on the outlet side of the i stand of continuous rolling mills, and controlling the material tension between i-i-1 and between i-1-i-2. CONSTITUTION:In continuous rolling mills having calibers, the breadth of a material is detected with a breadth size detector 32 on the outlet side of an (i) stand 4, and the deviation from a reference breadth is inputted to a speed controller 34, which controls the rolling speed of the stand 4 thereby controlling the material tension between the i-i-1 stands 4-3. The deviations between the height size detected with a height size detector 31 and a reference height size is inputted to a shape correcting device 35, which calculates the change value of the height size according to prescribed algorithm. The draft position is controlled by the controller 36 for rolling reduction of the i-1 stand 3. The value of tension control is further inputted to the device 35 to correct the draft position by the controller 36. According to the change value of the breadth size calculated by the device 35, the tension between the stand 3 and the i-2 stand is controlled.</p> |
