Patent ID: 8408035

Claim:
A method of making sheet steel, the method comprising the steps of: casting a thin slab workpiece of silicon-alloy steel; passing the cast workpiece through a preheating stage; passing the workpiece downstream of the preheating stage through an intensive-heating stage and thereby raising the workpiece temperature to an entry temperature of at least 1200° C.; feeding the heated workpiece at the entry temperature into a hot-rolling train having a plurality of roll stands and frame coolers between the roll stands; descaling the workpiece between the preheating stage and the hot-rolling train; and hot-rolling the workpiece in the train at such a speed and using the frame coolers so as to reduce workpiece thickness, lower workpiece temperature to a final rolling temperature, and convert the workpiece into a recrystallization state suitable for subsequent further processing into a grain-oriented sheet.