ROLLING MILL AND ROLLING METHOD FOR CONTROLLING CROWN AND EDGE DROP IN FINISHING MILL

摘要

PROBLEM TO BE SOLVED: To provide a rolling mill and a rolling method by which the crown and the edge drop of a hot-rolled steel plate are made small over the whole cycle.;SOLUTION: In the rolling mill, the upper and lower work rolls are incorporated in a stand so that the directions of tapered parts providing in the end parts of the barrels are reversed up and down each other and the mill is provided with shifting mechanisms for shifting the rolls in the axial direction of the roll for shifting the upper and lower rolls oppositely in the axial direction of the rolls so that the tapered parts are situated in both the edge parts of the material to be rolled. In the crown and edge-drop control rolling mill in the finishing mill and the rolling method using the same, the roll having the outer layer which is composed of a cemented carbide sleeve is used for the upper and lower work rolls.;COPYRIGHT: (C)2009,JPO&INPIT