Patent ID: 8205661

Claim:
A method for adjusting at least one roll segment ( 110 ) of a segmented strand guide ( 100 ) of a slab-casting installation against a strand that is cast vertically in a mold and is completely hardened when horizontally leaving a last roll segment, wherein the roll segment has an upper and a lower roll support ( 114 , 112 ), each of which supports at least one roll ( 116 , 118 ) for guiding the strand ( 200 ) between the rolls, and where the right and left sides of the roll segment, as seen in the direction of material flow, each have at least one adjusting element ( 121 - 124 ) for adjusting the two roll supports ( 114 , 112 ) relative to each other, which method includes the following steps: individually controlling the individual adjusting elements ( 121 - 124 ) in a closed-loop, detecting the actual profile of the strand at an exit of the last roll segment, including the heights (Hr, Hl) of the right and left lateral edges of the strand ( 200 ), and comparing the profile at the exit of the last roll segment with a set profile that includes a predetermined set height (H soll ), which is the same for the right and left lateral edges; and individually adjusting the individual adjusting elements ( 121 - 124 ) of the roll segment ( 116 ) located in an area where the strand has a liquid core based on the control deviation that results from the comparison so that the actual profile is adapted to the set profile, including preventing a wedge-shaped strand cross-section from forming by equalizing the heights of the right and left lateral edges of the strand ( 200 ) when the strand has a liquid core.