CONTROL ROLLING METHOD FOR STEEL PLATE EXCELLENT IN HOMOGENEITY IN LONGITUDINAL DIRECTION

摘要

PURPOSE: To improve thickness deviation and material deviation in the tip and tail end parts of a steel plate due to undercooling in the tip and tail end parts of the steel plate during rolling a thick plate. ;CONSTITUTION: In the hot control rolling of the steel plate including transporting pass for rolling the plate in the longitudinal direction before starting control rolling after completing the cross rolling of a rolled stock, a method for rolling the steel plate by which thickness deviation and material deviation generated in the tip and tail end parts of the steel plate are reduced by leaving the thicknesses in the tip and tail end parts of the steel plate thicker than that in the middle part of the steel plate and rolling at the pass just before starting controlling after completing the cross rolling.;COPYRIGHT: (C)1994,JPO&Japio