| 摘要 |
<p>PURPOSE:To adjust sheet crown amounts and to control sheet shapes by arranging adjusting rolls having a roll crown expressed by a tertiary or a sine-wave function in punctual symmetrical positions through upper and lower work rolls and relatively shifting the adjusting rolls to each other in the axial direction. CONSTITUTION:First intermediate rolls 2a-2d have an initial crown expressed by a tertiary or a sine-wave function. The upper intermediate rolls 2a,2b and the lower intermediate rolls 2c, 2d are arranged so that the initial crown of the rolls 2a,2b is a punctual symmetry position against that of the rolls 2c,2d through work rolls 1a,1b. Then, the rolls 2a,2b are shifted in the axial direction and the rolls 2c,2c are shifted in the reverse axial direction against the direction of the rolls 2a,2b to adjust a roll gap profile between the rolls 1a and 1b which deflecting along the initial crown of the rolls 2a-2d to adjust sheet crown amounts covering a length from the lateral central part of a rolled stock to all of edge parts of the stock on the outlet side of a rolling mill and to control a sheet shape.</p> |
