METHOD FOR ROLLING WIDE FLANGE SHAPE STEEL WITH UNIVERSAL ROLLING MILL

摘要

PROBLEM TO BE SOLVED: To stably roll and manufacture a wide flange shape steel excellent in the accuracy of thickness of a web and a flange by accurately predicting a rolling load by simple calculation. ;SOLUTION: As for rolling with a rough universal rolling mill 2 and a finish universal rolling mill 4, each of rolling force functions Qf, Qw to a flange and a web is determined on basis of the product of the function making the difference between the draft of the flange thickness and the draft of the web thickness of a base stock as a parameter and the function making the ratio of the flange thickness of the base stock to the diameter of a vertical roll or the square root of the ratio of the web thickness to the diameter of a horizontal roll as a parameter, each rolling load to the flanges and the web is predicted from the product of the determined rolling force functions Qf, Qw, the deformation resistance of the base stock and the contact area between the roll and the base stock and based on this predicated rolling load, the roll gaps in the rolling mills 2, 4 are set or corrected.;COPYRIGHT: (C)2000,JPO