METHOD AND EQUIPMENT FOR HEATING A METAL STRIP, IN PARTICULAR FOR ANNEALING

摘要

The invention pertains to the heating of a metal strip, and relates to equipment for heating a metal strip that comprises a pre-heating housing (2) provided with a device (11) for projecting hot gases towards the strip (1), a heating housing (4)with regenerative burners (16, 16'), a duct (31) for discharging the gases from the heating housing, a three-way adjustable valve (32) and an adjustment device including a sensor (34) for detecting the setpoint temperature of the metal strip and a member (36) for adjusting the three-way valve (32) so that it can adjust the amount of hot gases fed to the projection device (11). The invention can be used in equipment for heating narrow strips before annealing the same.