METHOD FOR CONTROLLING ROLLING SPEED OF HOT STEEL STRIP

摘要

PROBLEM TO BE SOLVED: To provide a method for controlling the rolling speed of a hot steel strip capable of preventing the temperature drop in the tip end part of the rolling material by the high pressure de-scaling, without changing the speed of the final stand which is the threading rule and capable of securing a uniform finishing temperature in the longitudinal direction of the rolling material. SOLUTION: In the method for controlling the rolling speed of the finish rolling mill capable of adjusting the speed of the upstream side stand and the downstream side stand from the pivot stand by setting one rolling stand among a plurality of rolling stands which constitute the finish rolling mill as the pivot stand which makes the rolling speed of the rolling stand as the speed standard of the finish rolling, the method for controlling the rolling speed of the hot steel strip characterized by the feature that the speed control is executed by changing the pivot stand into the other rolling stand while rolling the rolling material.