Patent ID: 9108234
Filing Date: 2015-08-18
Classification: B21B,B21C,B22D,C21D,F27B,Y02P

Abstract:
1. A method for preparing steel rolling stock before hot rolling of the stock, comprising the steps of: preheating the rolling stock in a first induction furnace having an air atmosphere, the preheating being such that the preheated rolling stock enters a descaling device downstream of the first induction furnace at a surface temperature of the stock T immediately subsequently descaling the preheated rolling stock by a plurality of water jets in the descaling device jetting water on the rolling stock; causing the descaled rolling stock to enter a second induction furnace at a rolling stock temperature T hot rolling the heated rolling stock in a rolling mill with at least three rolling passes, wherein the heated rolling stock enters the rolling mill at a temperature 1220° C.≧T