Bath outlet bell for a galvanized band

Details Bath outlet bell for a galvanized band Bath outlet bell for a galvanized band

C - Chemistry, Metallurgy

23

C

C23C 2/00 (2006.01) C23C 2/20 (2006.01)

Patent

CA 2155419

Device (6) for confinement of an anti-oxydant atmosphere at the molten metal bath outlet (1) in a galvanization plant for continuously hot-galvanizing a metal band, about a pneumatic device (4, 5) for wiping the band issued from the bath, comprising a bell whose lower edges are maintained immersed in the bath (1) and whose upper wall is provided with a band passage orifice (7), wherein each immersed edge of the bell (6) parallel to the band (2) is part of a flap (11, 12) whose cross-section is configured like a V, said flap being hinged to the bell about an axis (13, 14) parallel to the edge thereof in order to pivot to a first position wherein the edge of one of the panels (11a, 12a) of the V is immersed in the bath (1), the edge of the other panel (11b, 12b) being situated above the bath (1) inside the bell (6) and to a second position wherein the edge of the first panel (11a, 12a) is situated above the bath (1) outside the bell (6), the edge of the second panel (11b, 12b) being immersed.

Dispositif (6) de confinement d'une atmosphère anti-oxydante à la sortie du bain (1) de métal fondu dans une installation de galvanisation en continu d'une bande métallique à chaud, autour d'un dispositif pneumatique (4, 5) d'essorage de la bande issue du bain comprenant un clocheton dont les bords inférieurs sont maintenus immergés dans le bain (1) et dont la paroi supérieure est pourvue d'un orifice (7) de passage de la bande, dans lequel chaque bord immergé du clocheton (6) parallèle à la bande (2) appartient à un volet (11, 12) dont la section est en V, ce volet étant articulé au clocheton autour d'un axe (13, 14) parallèle à son arête pour pivoter entre une première position dans laquelle le bord de l'un des panneaux (11a, 12a) du V est immergé dans le bain (1), le bord de l'autre panneau (11b, 12b) étant situé au-dessus du bain (1) à l'intérieur du clocheton (6) et une seconde position dans laquelle le bord du premier panneau (11a, 12a) est situé au-dessus du bain (1) à l'extérieur du clocheton (6), le bord du second panneau (11b, 12b) étant immergé.

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