Patent ID: 7958931
Filing Date: 2011-06-14
Classification: B21B,Y10T

Abstract:
1. A method for continuous casting and rolling at increased casting speed followed by hot rolling of relatively thin metal strands ( 1 ), at relatively low strip speed, into thin, hot-rolled strip ( 2 ) in a multiple-stand hot-strip finishing train ( 3 ) with automatic control of the temperatures of the work rolls ( 4 ), comprising the steps of: at casting speeds of about 4 m/minute to 12 m/minute and taking into account the relatively thin thicknesses of the cast strand, adjusting the rolling speeds; increasing the temperatures of the work rolls of the finishing train ( 4 ) at a predetermined rate of increase, starting from a low initial temperature ( 5 ) by preheating of work rolls with a induction heating device and adjusting rolling speed; and adjusting the strip temperature ( 15 ) within the hot-strip finishing train ( 3 ) to a target rolling temperature ( 6 ) of the hot strip ( 2 ) by automatically controlling or regulating the intensity of the roll cooling ( 18 ) of the work rolls in the finishing train.