SLEEVED ROLLING ROLL Russian patent published in 2004 - IPC

FIELD: rolled stock production, mainly sleeved vertical rolls of cogging, thick-sheet rolling and universal stands of wide strip rolling mills. SUBSTANCE: roll includes arbor and sleeve mutually joined by interference fit; relation of length of mounting surface of sleeve to its outer diameter is in range 0.5 - 0.8. Sleeve and arbor have relation of wall thickness of sleeve and diameter of arbor t/d =0.2 - 0.35, where t - wall thickness of sleeve; d - diameter of arbor. Invention provides lowered tangential stresses of sleeve in zone of its contact with arbor. EFFECT: increased useful life period of sleeved vertical rolls, enhanced efficiency of rolling mill, improved quality of rolled strips. 2 dwg