MILL FOR ROLLING SHEET SECTION WITH THICKENED EDGES Russian patent published in 1994 - IPC

FIELD: rolled stock production. SUBSTANCE: rolling mill has the frame 1 with traverse bars 2, connecting the struts 4 and having jointly mounted rods 6 of the hydraulic cylinders 7 with vertical rails 8, mounted between the inner 9 and the outer 10 guides of the mill. Backup smooth rollers 16 or shaped rollers 17 are mounted in journals 12 of the hydraulic cylinders 7, the above mentioned rollers are kinematically connected with the rolling rolls 18, made of metal with an increased fatigue limit. These rolls may be bent for rolling sections by action of the backup rollers 16, 17. When the shaped rollers 17 are changed by the smooth rollers 16, the rolls 18 may roll typical sheet sections. Readjustment of the mill may be performed over a small time period as only the rollers 16, 17 are to be changed together with their hydraulic cylinders 7, but not the rolling rolls 18. EFFECT: upon making the sheet section with thickness 2 mm and beads 2-4 mm for usual welding metal economy consists 40-45% . 3 cl, 5 dwg