METHOD OF CONTROLLING LINE SPEED OF CONTINUOUS ANNEALING EQUIPMENT

摘要

PURPOSE:To continuously anneal multiple kinds and multiple sizes of strips respectively under optimum conditions by controlling the line speed based on the minimum value out of the maximum capacity line speeds of each furnace calculated from relations. CONSTITUTION:The relations between the annealing conditions of each furnace constituting the continuous annealing equipment and strip characteristics as well as maximum capacity line speeds are beforehand obtained. The maximum capacity line speeds in the 1st through 3rd cooling zones 4-6 are automatically calculated with a process calculator by using these relations. The line speed is controlled based on the minimum value out of these maximum capacity line speeds, whereby the continuous annealing operation of multiple kinds and multiple sizes of strips 1 may be accomplished under optimum conditions.