Mould for the continuous casting of blooms, slabs or billets

B - Operations – Transporting – 22 – D

Patent

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Details

B22D 11/055 (2006.01)

Patent

CA 2689939

The invention relates to a casting die for the continuous casting of blooms, slabs, or billets, having a die tube (2) and a support shell (4) surrounding the tube. The die tube (2) is supported on the support shell (4) by support profiles (15) which are distributed around the periphery and which run in the longitudinal direction of the tube, and is positively connected to the support shell by connection profiles (20) which extend in the longitudinal direction. The connection profiles (20) are each designed as profile strips (21, 22) which extend outward from the outer periphery of the die tube (2) and inward from the inner periphery of the support shell (4), and which engage in each other in such a manner that a play is created in the peripheral direction of the die. The invention thereby substantially avoids tension caused by thermal expansion, lasting deformation, and fatigue cracks.

L'invention concerne une coquille de coulée continue de blooms, de brames et de billettes, comportant un tube de coquille (2) et une enveloppe d'appui (4) entourant le tube. Le tube de coquille (2) s'appuie sur l'enveloppe d'appui au moyen de profilés d'appui (15) s'étendant dans la direction longitudinale du tube, répartis sur la périphérie, et est connecté à l'enveloppe d'appui par complémentarité de forme au moyen de profilés de connexion (20) s'étendant dans la direction longitudinale. Les profilés de connexion (20) sont respectivement conçus en tant que baguettes de profilés (21, 22) faisant saillie vers l'extérieur à partir de la périphérie extérieure du tube de coquille (2), et vers l'intérieur à partir de la périphérie intérieure de l'enveloppe d'appui (4), lesdites baguettes s'encastrant de telle manière qu'un jeu est présent dans la direction périphérique de la coquille. Ainsi, les tensions, les déformations permanentes et les fissures de fatigue pouvant apparaître dans le tube de coquille en raison de la dilatation thermique, sont essentiellement évitées.

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