METHOD AND DEVICE FOR CONTROLLED STRIGHTENING AND COOLING OF A WIDE METAL STRIP, ESPECIALLY A STEEL STRIP OR SHEET METAL, RUNNING OUT OF A HOT ROLLED STRIP ROLLING MILL

摘要

An invention relates to the ferrous metallurgy. A method for controlled straightening and cooling of a wide metal strip, especially a steel strip or sheet metal, running out of a hot rolled mill, includes the using pinching rollers arranged in the moving direction of the strip behind vertical double rollers, said pinching rollers producing a tensile stress acting in a longitudinal direction, at that the metal strip or sheet metal is displaced between a pre-straightening machine and splash cooling facility in defined conditions of tensile stress by adjusting the tensile stress and by cooling said strip or sheet metal inside said splash cooling facility between successive pairs of pinching rollers and by additionally controlling the tensile stress. Besides claimed is a device for realizing this method. The invention allows to obtain largeness steel sheets with using of usual cooling systems.