Ingot mould system

B - Operations – Transporting – 22 – D

Patent

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Details

B22D 21/04 (2006.01) B22D 7/06 (2006.01) B22D 9/00 (2006.01)

Patent

CA 2239890

An apparatus (10) for casting metal ingots comprises a series of ingot moulds (12) mounted along an endless conveyor (11) which is arranged to be driven around spaced-apart rotatable members (15) and (17). A molten metal supplying device (20) has a discharge member for supplying molten metal to empty moulds (12) moving along an upper run (14) of the conveyor (11) from a supply end (16) to a discharge end (18) of the upper run (14) of the conveyor (11). A casting hood (13) overlies at least a portion of the moulds (12) on the upper run (14) of the conveyor (11). Adjacent moulds (12) of the portion of moulds are closely contiguous during passage beneath the casting hood (13) whereby passage of protective gas between said adjacent moulds is minimised. The casting hood (13) and the portion of moulds (120) form a substantially gas- tight enclosure above the portion of moulds (12) into which gas can be introduced. The enclosure houses the discharge member of the molten metal supplying device (20).

Un appareil (10) pour couler des lingots de métal comprend une série de moules (12) à lingots montés sur une bande sans fin (11) qui tourne autour d'éléments rotatifs espacés (15) et (17). Un dispositif (20) d'alimentation en métal fondu a un élément de coulée pour remplir avec du métal fondu les moules vides (12) se déplaçant sur la partie supérieure (14) du transporteur (11) entre une extrémité de remplissage (16) et une extrémité de déchargement (18) de cette partie supérieure (14) de ce transporteur (11). Une hotte de coulée (13) couvre au moins une partie des moules (12) sur la partie supérieure (14) du transporteur (11). Les moules adjacents (12) sont contigus durant leur passage sous la hotte de coulée (13), ce qui permet de minimiser le passage du gaz protecteur entre les moules adjacents. La hotte de coulée (13) et les moules (12) forment une enceinte sensiblement étanche au-dessus des moules (12), dans laquelle on peut introduire un gaz. Le dispositif d'alimentation (20) en métal fondu se trouve dans cette enceinte.

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