METHOD AND DEVICE FOR PRODUCING A METAL COATING ON AN OBJECT EMERGING FROM A MOLTEN METAL BATH

摘要

The invention concerns a method for producing a metal coating on an object (4) emerging from a molten metal bath (5). The object may be a wire or a plate. The method consists in: generating a magnetic filed in the proximity of the site where the object emerges from of the bath; withdrawing the object from the molten metal bath through an outlet channel (3) containing the meniscus of said molten metal bath; adjusting the thickness of the metal coating on the basis of the second derivative of the curve of the meniscus (6) and a capillary number Ca representing the ratio between the viscous forces of the molten metal bath and the surface tension at the molten metal surface.