公开(公告)号：AU2007214429A1

公开(公告)日：2007-08-23

申请号：AU2007214429

申请日：2007-02-20

Applicant: ALCOA INC

Inventor： GARIMELLA SRINIVAS S ,  SCHULTHEIS FREDERIC J ,  PUDA MARK E ,  RINGLE MICHAEL A ,  GLOBIG MICHAEL A ,  BECK WILLIAM J ,  VERNON NEIL R

IPC: B21B37/32

Abstract: A system for rolling metal sheet having a substantially uniform flatness including a rolling mill including a pair of work rollers for reducing the thickness of a metal sheet, an induction heating apparatus in close proximity to at least one roller, bending jacks corresponding to each of the rollers, and a cooling spray system in proximity to rollers; a flatness measuring device positioned to measure a differential in flatness of the metal sheet; and an mill control interface connected between the flatness measuring device and the rolling mill's actuators, in which the mill control interface is configured to actuate the induction heating apparatus, the bending jacks and the cooling spray system to substantially eliminate flatness differentials is the metal sheet's flatness. The induction coil heating apparatus is configured to eliminate high tension on the strip edges caused by the temperature gradients in the work rolls at the edges of the metal strip.

公开(公告)号：BRPI0707959A2

公开(公告)日：2011-05-17

申请号：BRPI0707959

申请日：2007-02-20

Applicant: ALCOA INC

Inventor： BECK WILLIAM J ,  GARIMELLA SRINIVAS S ,  GLOBIG MICHAEL A ,  PUDA MARK E ,  RINGLE MICHAEL A ,  SCHULTHEIS FREDERIC J ,  VERNON NEAL R

IPC: B21B37/32

Abstract: A system for rolling metal sheet having a substantially uniform flatness including a rolling mill including a pair of work rollers for reducing the thickness of a metal sheet, an induction heating apparatus in close proximity to at least one roller, bending jacks corresponding to each of the rollers, and a cooling spray system in proximity to rollers; a flatness measuring device positioned to measure a differential in flatness of the metal sheet; and an mill control interface connected between the flatness measuring device and the rolling mill's actuators, in which the mill control interface is configured to actuate the induction heating apparatus, the bending jacks and the cooling spray system to substantially eliminate flatness differentials is the metal sheet's flatness. The induction coil heating apparatus is configured to eliminate high tension on the strip edges caused by the temperature gradients in the work rolls at the edges of the metal strip.