Patent ID: 8601851
Filing Date: 2013-12-10
Classification: B21B,C21D,Y02P

Abstract:
1. A method for hot rolling starting material ( 200 ) in a finishing train ( 100 ), which comprises the following steps: introducing the starting material ( rolling the heated starting material ( compensating for the heat losses by reheating the material between at least some of the successive rolling stands ( the compensating step including determining a first of the heaters, relative to a direction of material flow, at which or downstream of which the temperature of the material threatens to fall below the lower temperature threshold value (T U ) for a first time due to heat losses; then reheating the material so that the temperature of the material is increased by the first heater ( 120 - k ) only to an extent that the temperature falls to the lower temperature threshold value (T U ) due to given local heat losses in the finishing train during further conveyance of the material to a next heater downstream ( 120 -[k+1]) of the first determined heater, as seen in the direction of material flow, or if there is no further heater downstream in the direction of material flow, the temperature of the material is increased to a point at which the material leaves the finishing train ( 100 ); and repeating the reheating of the material by each additional downstream heater within the finishing train, as viewed in the direction of material flow.