Patent ID: 7156152
Filing Date: 2007-01-02
Classification: B22D

Abstract:
1. A process for continuous production of a thin steel strip, comprising: introducing a steel melt from a melt reservoir between two rotating and cooled casting rolls, which move synchronously with a casting strip, such that the steel melt at least partially solidifies at the casting rolls to form the casting strip, wherein the steel melt includes at least alloying constituents of: less than 1% by weight of Ni less than 1% by weight of Cr less than 0.8% by weight of C, in particular less than 0.4% by weight of C at least 0.55% by weight of Mn wherein recesses are arranged on a peripheral surface of at least one of the casting rolls, the recesses being in a random pattern distributed uniformly over the casting roll surface, and wherein a roll separating force at the casting rolls is regulated to a value of between 5 and 150 N/mm.