| 摘要 |
A process and apparatus for rolling a metal strip whereby the waviness of the strip in the direction of the strip thickness is detected at a plurality of locations along the width of the strip, while the strip is under tension, during the rolling operation. The roll crown and/or the rolling load is selectively controlled in response to the detected waviness DELTA h in accordance with the relation DELTA h = Embij + F, where i and j are variables indicating the position of sensors, m is a parameter relating to tension of the strip, b is the output waviness under no tension and E and F are constants. The shape variations b in the resulting output metal strip, under no tension, which are not actually determined until after a very long period of time, such as during the next manufacturing process, are maintained within predetermined tolerances by said preliminary control during the rolling operation. |
