| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for setting extracting time from a heating furnace in hot rolling where, at the time of producing a steel strip by hot rolling, the passing time of each rolling equipment in a rolling line is predicted with high precision, and, based on the same, the time at which the material to be rolled is extracted from a heating furnace can be suitably set. <P>SOLUTION: A scale loss by scale produced on the surface layer of a slab in a heating furnace and a crop loss caused by the cutting of the tip and back end of the material to be rolled before a finish rolling mill are previously calculated, respectively, and, based on the same, the weight of the material to be rolled used at the time when the passing time of each rolling equipment is calculated is corrected. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
