B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 41/58 (2006.01) B22D 11/112 (2006.01)
Patent
CA 2424085
The invention concerns a nozzle mainly consisting, when viewed in vertical position and in the forward movement of the liquid steel from the top downwards, of a vertical conduit (5) comprising in its upper part a distributing member, arranged substantially at the intake of said conduit and including a dome (6) for deflecting the metal penetrating into the nozzle, which is also provided with means for injecting a gaseous, liquid or solid finely divided material beneath said dome (6) into a so-called inner zone (11). The dome (6) of said distributing member is provided with means for separating liquid steel into two jets (B, C), a jet (B) flowing into the so- called inner zone (11) and penetrating into the ingot mould (1) through a first orifice (9) at the lower base of said conduit (5) and a jet (C) flowing into a so-called outer zone (12) and penetrating into the ingot mould (1) through lateral orifices (8) located in the vertical wall of said conduit (5).
Busette de coulée continue composée principalement, si elle est décrite en position verticale et considérée dans le sens de progression de l'acier liquide de haut en bas, un conduit vertical (5) présentant dans sa partie supérieure un organe répartiteur, disposé sensiblement à l'entrée dudit conduit et comprenant un dôme (6) permettant de dévier le métal entrant dans la busette, laquelle est également dotée de moyens d'injection de matière gazeuse, liquide ou solide finement divisée sous ledit dôme (6) dans une zone dite interne (11). Le dôme (6) dudit organe répartiteur est pouvrvu de moyens permettant la séparation de l'acier liquide en deux jets (B,C), un jet (B) s'écoulant dans la zone dite interne (11) et pénétrant dans la lingotière (1) par un premier orifice (9), suite à la base inférieure dudit conduit (5) et un jet (C) s'écoulant dans une zone dite externe (12) et pénétrant dans la lingotière (1) par des orifices latéraux (8), situés dans la paroi verticale dudit conduit (5).
Centre de Recherches Metallurgiques A.s.b.l.
Gowling Lafleur Henderson Llp
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