Method for change of section of a billet below a casting die of a continuous casting plant

Abstract

In a method for changing a billet section of a continuous billet casting device from an initial section to a final section, the opposed billet sides interact with oppositely positioned roll supports of a billet guide arranged below a continuous casting die. The roll supports have segments with rolls, and each segment is individually adjustable with respect to its angular position relative to the billet. In an initial position of the roll supports, the segments are adjusted to a uniform production format of the billet. A controlled sequence of adjusting steps of the segments successively arranged in a direction of continuous casting is carried out, wherein, for reducing the section of the billet, the segments are advanced successively toward the billet in the continuous casting direction and, and for increasing the section of the billet, the segments are moved successively away from the billet in the continuous casting direction. A transition section is generated to provide a transition from the initial section to the final section of the billet, wherein the transition section has a length of at least 50% of a length of the billet. A device for performing the method has an adjusting device moving the segments of the first and second roll supports. The adjusting devices has position and force control devices.

Dependencies are inferred from the claim text.