DEVICE FOR PRODUCING LIGHT-GAGE METALLIC STRIP

PURPOSE:To produce a thin metallic plate having less variance by measuring the distance between a roll plane and a nozzle plane and controlling directly the changing position thereby maintaining the specified distance. CONSTITUTION:The correction of the distance G between a roll plane and a nozzle plane is accomplished by cylinders 13, 14. The cylinder 13 for correcting a furnace body 1 side is fixed to a stanchion 9 and gives external force with respect to a support frame 8. The cylinder 14 for correcting a cooling roll 5 side is fixed to a base 12 and gives external force with respect to a frame 11. The cylinders 13, 14 have the function to change hydraulic power as desired by the combination of an electromagnetic proportion type pilot relief valve 5 and a reducing valve 16, etc. A gap measuring device 17 converts a gap to a signal to operate the valve 15 and the valve 16 through a control device side thereby changing the hydraulic force.