STEEL STRIP PASSING METHOD AT CONTINUOUS HEATING FACILITY, AND PASSING POSITION CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a steel strip passing method, and a passing position control device in a continuously heating facility capable of improving the service life of a conveyor roll for a heating furnace. SOLUTION: A center position control device 4 is arranged upstream of a continuous annealing furnace 1. The center position control device 4 periodically changes its target control position according to the signal from a function generator. The position of the outer circumferential surface of a hearth roll 2 with which an edge portion of a steel strip 3 to be conveyed is brought into contact is dispersed in the axial direction, and the wear per unit time of the hearth roll 2 is reduced.