CONTROLLING METHOD OF TEMPERATURE DISTRIBUTION IN TRANSVERSE DIRECTION OF METALLIC STRIP

摘要

PURPOSE:To distribute uniformly the temp. in the transverse direction of a metallic sheet in the stage of using hot and cold wind from gas injectors in performing treatment, such as heating and cooling, of the metallic sheet by masuring the temp. in the transverse direction of the sheet and adjusting the flow rate of the gas in the transverse direction of the gas injectors in accordance with the same. CONSTITUTION:Hot or cold wind is blown from gas injectors 11-16 provided to plural rolls 4-9 while a metallic sheet 17 is moved by said rolls, whereby the heating or cooling treatment of the sheet 17 is performed. The temp. distribution in the transverse direction of the sheet 17 is measured with thermometers 44- 46 in this case and the thickness, width and moving speed of the sheet 17 are calculated with arithmetic devices 19-21, according to which the damper openings in the transverse direction of the injectors 11-16 are adjusted and the temp. in the transverse direction of the sheet 17 emerging from the heating the cooling treatment device is thus automatically and uniformly distributed.