Method and installation for producing material to be rolled as a hot strip from silicon steel based thin slabs

摘要

Method for producing material to be laminated as a hot rolled strip from a cast product, for example from a thin slab, where the cast product (2), in a first step, is subjected to a pre-treatment heat and, in a second step, the preheated cast product is subjected to a rolling process in a rolling hot rolling mill; and where the material to be rolled considering the further processing, is it transferred to a state suitable recrystallization at a final temperature desired lamination (TWE), and the final rolling temperature (Twe) of the material to be laminated is regulated at temperatures of at least 950 ° C, preferably above 1000 ° C and that the cast product (2), under the pre-heat treatment, to control the final rolling temperature (Twe) of the material to be laminated in the train of the hot rolling mill, through at least one preheating stage (3) and a step of intensive heating (6), and thus is preheated to a temperature input (Tein) of at least 1200 ° C to enter the train hot mill (9a or 9b) and that prior to the preheating step (3) pickling is performed in a pickling device, characterized in that to produce alloy steels with silicon processing posteri or to produce GOES, such as electrical sheets, the temperature control on the train of rolling mill (9a and 9b) is regulated by a combination of the rolling speed and the use of devices of intermediate cooling (10) where after hot-rolling the material to be rolled is annealed at temperatures (TA) lower than 450 ° C within 10 s.