Mold for continuous casting of a flanged rollable billet for a rolled girder or beam and rollable billet made therewith

摘要

The mold for continuous casting of a rollable steel flanged billet having a web and two flanges used to make a steel beam or girder comprises two side walls extending over the web and the flanges and two end walls determining the thickness of the flanges positioned movably between the side walls. To provide a continuous casting mold in which the web length, the web thickness and the flange thickness can be independently varied, each of the side walls has a straight portion and an exteriorly directed bent out end portion angled relative to the straight portion, each of the end walls is positioned between a straight portion of one of the side walls and an adjacent opposing bent out end portion of the other of the side walls and at least one side wall is movable in the direction of its planar surface relative to the other side wall transverse to the casting direction. Also at least one side wall is movable in a direction substantially perpendicular to its planar surface to or from the other side wall and transverse to the casting direction. The mold is used to produce a superior quality rollable steel flanged billet which is closer in its dimension to the desired final product in a continuous casting process.