Patent attributes
Embodiments of the present invention comprises melting scrap steel into molten steel; decarburizing the molten steel and adding alloys; transferring the steel to ladles and casting the steel into slabs; hot rolling the slabs into sheets; pickling the sheets; annealing the sheets; cold rolling the sheets; and performing one or more of tension leveling, a rough rolling, or a coating process on the sheets after cold rolling, without an intermediate annealing process between the cold rolling and the tension leveling, the rough rolling, or the coating process. The sheet is sent to the customer for stamping and customer annealing. The new process provides an electrical steel with the similar, same, or better magnetic properties than an electrical steel manufactured using the traditional processing with an intermediate annealing step after cold rolling.
