Device And Method For Stabilization And Visual Monitoring Of An Elongated Metallic Strip

摘要

A device and a method for visual monitoring and stabilization of an elongated metallic strip during continuous transport of the strip in a transport direction along a predetermined transport path, wherein the strip has been coated with a metallic layer by the strip having continuously passed through a bath of molten metal. The device includes an electromagnetic stabilizing device with at least one first pair of electromagnetic stabilizing means arranged on each side of the predetermined transport path, and a wiping device for wiping off superfluous molten metal from the strip by applying an air current in a line transversely of the transport direction of the strip and across essentially the whole width of the strip. A first image-reading apparatus takes images of the actual position of the strip in relation to the predetermined transport path. A second and third image-reading apparatus take images of the surface of the strip.