| 摘要 |
In a rolling mill having means for changing the flatness profile, such means are controlled by a detector that engages the band coming from the rolling mill under tension to determine the tension at a plurality of points transversely across the bands, which tension distribution is correlated to the band unevenness, when relaxed, and convert the thus determined tension into signals that are compared with reference values for operation of the means to control the plate unevenness or flatness. The detectors preferably convert the tension at the plurality of locations into moments that may be measured with load cells interiorly of closely adjacent freely rotating rings, wherein the tension component exerted on the rings is transferred to a pivotal mounting for the ring support structure to thus produce the moment. The signals on the left side of a band center line are compared with the signals on the right side; the signals from detectors between the band edges are compared with a reference signal produced by summing all of the signals; and the signals from the edge detectors are compared with a reference signal produced according to the proportion of the band edge engaging the edge detectors. |
