| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an interval pitch control method by which a stock to be rolled can be approximated to the optimum interval pitch when the extracting timing of the stock to be rolled from a heating furnace is delayed. <P>SOLUTION: In a method for adjusting the interval pitch on a hot rolling line which includes a plurality of the heating furnaces and conveying tables for conveying the stock to be rolled extracted from those heating furnaces, the conveying tables are changeable in conveying speed, an extracting time of the stock to be rolled from the heating furnaces is determined by planning beforehand the interval pitch by the time or the distance so that the tail end of a preceding stock to be rolled and the nose of a following stock to be rolled are prevented from colliding in the hot rolling line. At normal time, the extracting time is determined under the condition that the stock to be rolled is conveyed at a set speed which is lower than the upper limit speed conveyable with the conveying table, and when the extracting time of the stock to be rolled gets behind the determined time, the delay is recovered by conveying the stock to be rolled by operating the conveying tables at faster speed than that of the normal time. <P>COPYRIGHT: (C)2013,JPO&INPIT |
