DEVICE FOR CONTROLLING COOLING PERFORMANCE OF ROLLS OF DOUBLE-ROLLED THIN SHEET CASTING DEVICE

摘要

PURPOSE: A control device of cooling performance of rolls of a double-rolled thin sheet casting device is provided to improve the quality of a cast piece and to improve real yield rate by preventing abnormal solidification due to delay of solidification occurring in both ends of a cast piece. CONSTITUTION: A main controller(54) receiving a temperature signal transmitted from a thermometer(51) calculates gas supply width in a non-solidified part formed on both edges of a roll(1b). If supply amount of nitrogen to be supplied to the both edges of the roll via a supplier(32) is determined, a gas supply width controller(40) moves forward and backward the front end of a rod of a cylinder(41) by receiving the determined gas supply width. A baffle assembled to be available to glide widthwise of the roll is moved in the supplier connected to a gas supply line(33) to widen or make narrow the gas supply width of the supplier according to the non-solidified part.