| 摘要 |
<p>The present invention relates to a method of controlling for obtaining the aimed strip shape using a rolling mill provided with rolls, which are variable in amount of crown by feeding a pressurized oil in the inside thereof, and an apparatus therefor. According to the present invention, the strip shape is detected, the detected strip shape being approximated by a function including a term of the second power of a variable, which is a position or a distance in the direction of width of the strip, and the amount of crown being adjusted to coincide the term of the second power with the aimed value thereof. In addition, the rolling mill is provided with right and left pressing-down balancers and roll benders. The strip shape in the width direction of the strip is detected, the detected shape being approximated by a function including terms of the first, second, fourth, sixth or eighth power of a variable, which is a position or a distance in the width direction of the strip, the amount of pressing-down of the right and left pressing-down balancers being adjusted to coincide the term of the first power with the aimed value thereof, the amount of crown of the roll being adjusted to coincide the term of the second power with the aimed value thereof, and a roll bending force being adjusted to coincide the term of the fourth, sixth or eighth power with the aimed value thereof.</p> |
