Strip casting

Details Strip casting Strip casting

B - Operations, Transporting

22

D

B22D 11/06 (2006.01) B22D 11/10 (2006.01)

Patent

CA 2069258

With reference to Figure 4, a metal delivery nozzle (19) for delivering molten metal to a nip between a pair of strip casting rollers comprises an upwardly opening inlet trough (61) to receive a series of free falling vertical stream (65) of molten metal and a metal flow passage (62) extending downwardly from the bottom of the inlet trough (61) to a metal flow outlet slot (69). Trough (61) has a side wall surface (64) which slopes downwardly and across the trough to the upper end of the metal flow passage (62). The free falling streams (65) impinge on side wall surface (64) at an acute angle of impingement such that the molten metal tends to adhere to that wall surface and to spread into the form of a sheet (70) flowing down the side wall surface.

Cette invention concerne une busette de coulée (fig. 4) servant à acheminer du métal fondu entre une paire de galets de coulée de bandes. Elle comporte une cuvette de réception ouverte vers le haut (61) dans laquelle tombe par gravité une série de filets (65) de métal fondu et un passage (62) se prolongeant vers le bas à partir du fond de la cuvette (61), vers une fente de distribution (69). La cuvette (61) présente une paroi latérale (64) inclinée vers le centre et se terminant au sommet du passage (62). Les filets de métal fondu (65) heurtent la paroi latérale (64) selon un angle aigu, ce qui a pour effet que le métal tend à adhérer à la paroi et à s'écouler en nappe (70) vers le passage alimentant la fente de distribution.

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