Patent ID: 9126246
Filing Date: 2015-09-08
Classification: B21B

Abstract:
1. A method for producing flat products, comprising providing a slab having a thickness from ˜30 to ˜90 mm; shearing the slab into segmented slabs, wherein the segmented slabs have a same length and a same weight; heating the segmented slab to a temperature; maintaining the segmented slab at the temperature; rolling the segmented slab in a reversing rolling mill for a plurality of passes to reduce a thickness of the segmented slab, the reversing rolling mill including at least one reversing rolling stand; providing a first winding reel furnace upstream of the reverse rolling mill to wind the segmented slab, providing a second winding reel furnace downstream of the reverse rolling mill to wind the segmented slab, reducing the thickness of the segmented slab to about 20 to 25 mm immediately after a first pass in the reversing rolling mill; winding the segmented slab on one of the winding reel furnaces immediately after the first pass in the reversing rolling mill; forming a strip and defining a final thickness of the strip in a last pass of the segmented slab in the reversing rolling mill; providing one coiler downstream of the second winding reel furnace, the coiler being configured to coil the strip to form a coiled strip, wherein a weight of the coiled strip is equal or less than the weight of a segmented slab; providing a cooling process downstream of the reversing rolling mill and upstream of the coiler; providing a shearing process downstream of the cooling process and upstream of the coiler; gripping the strip simultaneously with the first winding reel furnace, the reverse rolling stand, and the coiler in the last pass of the segmented slab in the reversing rolling mill; forming the coiled strip in a continuous manner immediately after the last pass of the segmented slab in the reversing rolling mill; and forming at least two coiled strips, wherein the weight of each coiled strip is from ˜20 to ˜30 tons.