METHOD FOR FORMING STACK OF ROLLS OF ANISOTROPIC ELECTRICAL STEEL BEFORE ANNEALING ROLLS IN COVER FURNACE Russian patent published in 2002 - IPC

FIELD: ferrous metallurgy. SUBSTANCE: method involves arranging rolls in one or two tiers and placing rolls on annular disks of support; providing antifriction layer between end surfaces of roll and annular disk of support by using at least four semicircles, with detachment lines of each pair of semicircles being offset one with respect to another; placing at least three semicircles on upper end of roll, with ends of semicircles being arranged in overlapped relation. Semicircles are manufactured from anisotropic electrical steel. Three semicircles are laid so that their ends are overlapped for distance of at least 100 mm. EFFECT: improved quality of strip steel thermally processed in cover furnace by eliminating damage of coils in end part of rolls and improved quality of electrically insulated cover. 2 cl, 3 dwg