| 摘要 |
<p>PURPOSE:To increase the accuracy in plate thickness control by storing with measurement the relative data of the oil film thickness at the roll bearing part and rolling, load, etc. in advance, then by performing the adjustment of the roll rolling reduction position in actual rolling via the storing data thereof. CONSTITUTION:The load cell 21 detecting a rolling load is provided at the lower part of a horizontal frame 14 and filter circuits 31, 32, averaging circuits 37, 38 and oil film thickness composition arithmetic unit 35 are arranged as well. First, in the kiss roll state, rolls 2, 12 are turned by varying the rolling load and rolling speed respectively. In this case the pattern of the oil film thick ness at bearing part of roll 1, 11 is stored via the averaging circuits 37, 38 by memory dives 33, 34. The oil film thickness at the bearing part of the rolls, 11 in case of rolling a rolling stock 40 is operated based on the storing data by the composition arithmetic unit 35 and controlled by a control device 36. In this way, plate thickness control accuracy is increased.</p> |
