Installation for hot dip coating a metal strip comprising an adjustable confinement box

摘要

Installation for hot dip coating a metal strip comprising an adjustable confinement box Installation for hot dip coating a metal strip, comprising: · means for moving said metal strip along a path, · a pot (3) for containing a melt bath (4), and · a wiping system comprising at least two nozzles placed on either side of said path downstream the pot (3), the wiping system having a box (16) with a lower confinement part (18) for confining an atmosphere around the metal strip upstream of said nozzles (7) and an upper confinement part (30) for confining the atmosphere around the metal strip downstream of said nozzles, said wiping system (7) having first moving means for vertically moving the lower confinement part (18) with respect to the pot (3). The nozzles are vertically movable relative to the pot (3). The wiping system (5) comprises second moving means (10) for vertically moving the upper confinement part (30) with respect to both the pot (3) and the lower confinement part (18).