STRIP HOT ROLLING PROCESS

摘要

FIELD: rolled stock production, possibly manufacture of hot rolled wide strips.;SUBSTANCE: process comprises steps of hot rolling of strip, mainly strip having thickness 1.5 - 2.5 mm in wide strip rolling mill; inter-stand cooling of strip in finish rolling group of stands by means of water from upwards and downwards; further cooling of strip by means of water in outlet roller table; at rolling in finish group of stand forming strip with doubled symmetrical convexity of its cross section contour due to alternating controlled variable cooling of rolled piece with water in finish rolling stands before rolling; cooling strip along its width directly before it is introduced to deformation zone due to local water supply to strip from upwards and downwards near its edges and limiting water supply to central portion of strip.;EFFECT: possibility for optimal use of strips for making double-width sheet iron due to effective control of forming desired variable geometry of hot rolled strip along its width.;1 ex