Patent ID: 9433983
Filing Date: 2016-09-06
CPC Classification: B21B

Claim Text:
1. A rolling method for the production of flat products with a low productivity comprising: a) continuously casting a slab having a thickness between 25 mm and 50 mm at a speed between 3.5 m/min and 6 m/min, b) roughing the slab in at least one of a forming stand or a roughing stand to reduce the slab's thickness to between 10 mm and 40 mm, c) rapidly heating the slab downstream of said casting and roughing steps, d) winding and unwinding the slab in a winding/unwinding device having at least two mandrels after the step of rapidly heating, and e) rolling the slab in a rolling unit having two reversing stands, wherein the rolling step comprises no more than three double rolling passes or two inversions to obtain a final slab having a thickness between 1 mm and 16 mm, wherein in each of the double rolling passes, the percentage thickness reduction of the slab in the first stand is between 25% and 50% and the percentage thickness reduction of the slab in the second stand is between 0% and 30%.