Method and apparatus for metal strip temperature control

Details Method and apparatus for metal strip temperature control Method and apparatus for metal strip temperature control

G - Physics

05

D

341/15.1

G05D 23/19 (2006.01) B21C 31/00 (2006.01) C21D 9/56 (2006.01) G05D 23/27 (2006.01)

Patent

CA 1137191

METHOD AND APPARATUS FOR METAL STRIP TEMPERATURE CONTROL ABSTRACT OF THE DISCLOSURE Method and apparatus are disclosed for accurately controlling the temperature of a moving metal strip in a continuous heat treating operation. A plurality of temperature sensors are located at fixed intervals along the path of the metal strip through the heat treating apparatus, e.g., the cooling tunnel following an annealing oven, employed to control the application or extraction of heat and thereby the rate of temperature change of the strip. Errors in sensor readings are compensated by secondary averaging of adjacent temperature differential measurements to provide a more accurate temperature control.

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