| 摘要 |
<p>PURPOSE:To correct a pitch between the material concerned and the next charging material in either case of an expanded state or a reduced state to the optimum pitch between the material concerned and the preceeding material. CONSTITUTION:In the time of extraction of the material concerned, a pass schedule by each mill 6, 18 to the material concerned is set and times when the material concerned arrives at each equipment on a thick steel plate rolling line 2 are estimated. These estimated times are corrected according to the movement of the material concerned and when the material concerned arrives at a certain fixed point arranged on a thick steel plate rolling line 2, a pitch between the material concerned and the preceding material is required from the estimated time, the rolling pass schedule of a rough mill 6 is changed according to the difference between this pitch and the optimum pitch and the material concerned is approached or delayed to correct the pitch between the material concerned and the preceeding material. The charging time for the next extracted material is advanced or delayed according to change of the rolling pass schedule by the rough mill 6 to the material concerned.</p> |
