| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and equipment for continuously annealing a steel plate in which an induction heating device is installed, the steel plate is adequately heated by the induction heating device, and a highly efficient operation is performed even when the tempering temperature of the steel plate exceeds 250°C. SOLUTION: In the method for continuously annealing a steel plate by using the continuously annealing equipment having the cooling zone and the over-aging zone of the steel plate, an induction heating device to rapidly heat the steel plate is installed between the cooling zone and the over-aging zone, or at a first pass of the over-aging zone, and when the tempering temperature of the steel plate exceeds 250°C, the steel plate is heated by the induction heating device to a temperature of≥80% of the in-furnace temperature at the over-aging zone. COPYRIGHT: (C)2005,JPO&NCIPI
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