Liquid cooling of a strip running in a continuous line

A liquid cooling chamber for cooling a metal strip running vertically in a continuous treatment line, said chamber comprising an upper cooling zone wherein a cooling liquid is sprayed onto the strip, and an intermediate zone for drying the strip, comprising at least one nozzle intended to form a blade of gas impacting the strip at an acute angle A less than 80°, and preferably less than 60°, the nozzle being situated in an enclosure defined by the strip and profiled sheet metalwork arranged facing the strip, said profiled sheet metalwork forming a barrier to the ingress of liquid into the enclosure, characterized in that

• the profiled sheet metalwork forms a first inclined surface starting at the upper end (34) of the profiled sheet metalwork arranged in the vicinity of the strip, the extension towards the strip of the first inclined surface forming therewith an acute angle B less than 90°, and preferably less than 60°, and the profiled sheet metalwork forms a second inclined surface originating at the lower end of the profiled sheet metalwork arranged in the vicinity of the strip, the extension toward the strip of the second inclined surface forming therewith an acute angle C less than 90°, and preferably less than 60°.