| 摘要 |
PURPOSE:To bring the charging pitch and the extraction pitch of a steel piece in a heating furnace to synchronous relation, by a method wherein a preheating zone and a heating zone are provided to a steel piece heating furnace arranged between a continuous casting installation and a hot rolling installation and the preheating zone is used as the accumulator zone of the steel piece. CONSTITUTION:A continuous cast steel cast in a continuous casting installation 1 is cut into a preset length on a cutting roller table 2 and the each obtained steel piece is moved to a pass table 5. This steel piece is moved to a roller table 9 for storing the steel piece by a first transfer table 3. This steel piece is introduced into a heating furnace 7 to be heated therein and the heated steel piece is subjected to hot rolling in a hot rolling installation 10. In this case, difference is generated between the extraction pitch of the steel piece required by the rolling installation 10 and the supply pitch thereof in the casting installation 1 and, when the former is equal to or faster than the latter, the steel piece is directly sent to the heating zone of the heating furnace 7 by a second transfer table 8 while, when the former is slower than the latter, the steel piece is once introduced into the preheating zone in the heating furnace 7 to be stayed therein to bring both pitches to synchronous relation. |
