Patent ID: 6332492
Filing Date: 2001-12-25
Classification: B21B,B22D,C21D,F27B,F27D

Abstract:
Method to control the axial position of slabs emerging from the continuous casting machine applied in rolling lines comprising at least a continuous casting machine (11) with at least an ingot mold (13), an extraction and straightening assembly (12), shearing means (14), a heating and/or temperature maintenance furnace (15), a roughing or pre-finishing train (16) and a finishing train (19) defining a rolling axis (25), wherein said furnace (15) comprising a plurality of transport rollers (39) defining a substantially horizontal supporting and conveying plane for said slabs, there being included between the outlet of said heating and/or temperature maintenance furnace (15) and the inlet of said roughing train (16) lateral guides (20) and at least a descaling assembly (22), comprising the steps of: laterally aligining the axis (32) of said slab (24) emerging from said continuous casting machine (11) to the rolling axis (25) of a first stand of said roughing or pre-finishing train (16) or of a first stand of said finishing train (19), providing to continuously control the axial position of the slab (24) with respect to said rolling axis (25) by means of detector means (36) arranged at least upstream of the entrance of said first rolling stand and to act in feedback on alignment means operating inside said heating and/or temperature maintenance furnace (15) and cooperating with said transport rollers (39), wherein said aligment means being able to modify the position of said axis (32) by inducing a controlled lateral displacement of said slab (24) in transit on said supporting and conveying plane functionally correlated to said control of the axial position of the slab (24).