Patent ID: 6451136
Filing Date: 2002-09-17
Classification: B21B

Abstract:
A method for producing hot-rolled strip and plates in a production plant including a continuous casting installation for slabs 100-180 mm thick, descaling sprays, a single- or multiple-stand rolling unit with or without integrated edging, a cooling interval, a heating furnace, and a Steckel mill, the method comprising the steps of: deforming only a skin layer of a previously descaled slab in-line between the continuous casting installation and the heating furnace; recrystallizing the slab during and after deformation; and then cooling the slab in several stages to a temperature below the Ar3 transformation point and temporarily maintaining the temperature below the Ar3 transformation point until a microstructural transformation of the recrystallized, fine-grained austenite to ferrite/pearlite has been completed.