Continuous casting ingot mould for guiding continuous castings

Details Continuous casting ingot mould for guiding continuous castings Continuous casting ingot mould for guiding continuous castings

B - Operations, Transporting

22

D

B22D 11/04 (2006.01)

Patent

CA 2181903

The invention is directed to a continuous casting mold for producing strands in the form of slabs, thin slabs, blooms, and billets resulting in highly reliable casting at casting speeds of up to 6m/min. The cambered shape of the mold causes the strand to be centered during casting by the mold so that sideways movement of the strand shell toward one of the narrow sides (snaking) is suppressed or moderated. This symmetrical running of the strand shell box during casting in the mold results in a uniform symmetrical formation of the strand shell and its temperature field (isotherms), the withdrawal forces, and the loading of the strand shell in relation to the strand axis in the casting direction, even despite weaving of the strand in the region of the strand guide.

L'invention concerne une coquille de coulée continue permettant de produire du métal coulé en continu se présentant sous forme de brames, de brames minces, de blooms et de billettes. Cette coquille de coulée continue permet d'atteindre une grande fiabilité de coulée à des vitesses de coulée allant jusqu'à 6 m/mn. Grâce à la forme bombée de la coquille, le metal coulé est centrée par ladite coquille pendant le coulage, ce qui élimine le risque que la croûte solidifiée ne se déplace latéralement dans une des directions des petits côtés (mouvement oscillant). Ce déplacement symétrique de la caisse pendant le coulage dans la coquille, permet d'obtenir une structure symétrique régulière de la crôute solidifiée, de son champ de températures (isothermes), des forces d'extraction et des contraintes exercées sur la crôute solidifiée par rapport à l'axe d'un métal coulé dans le sens de coulée, même lorsque la barre effectue un mouvement oscillant dans la zone de son guide.

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