| 摘要 |
<p>PURPOSE:To control properly the shape of a rolling material by arranging a six-high HC mill and setting the moving quantity of an intermediate roll and the bending force of a work roll to the proper values in accordance with the temperature change of a rolling material and the increase of a roll thermal crown. CONSTITUTION:A six-high HC mill 7 is arranged at a steckel-mill rolling installation provided with furnace coilers 12, and temperature detectors 5, 9 are provided to the front and back of the mill 7. By the means of a temp. command of rolling mill 13 and a temp. estimation command based on the length of a rolling material 13, etc. with the aids of detectors 5, 9; intermediate rolls 16, 21 are moved on the way of rolling, to change the distance between the width end of material 13 and the body ends of rolls 16, 21. That is, the shape of material 13 is controlled by setting the values of distances to large-small-large in conformity with the low-high-low of the temperature distribution from the front end of material 13 to its rear end.</p> |
