Method of coating a substrate, installation for implementing the method and device for supplying metal to such an installation

摘要

The process for coating a face of a substrate such as steel band by scrolling and by deposition of a metal or its alloy layer to be sublimated, comprises placing the metal or metal alloy with respect to the face of the substrate in the form of two ingots contacting one another, and turning the surface of the ingots towards the face of the substrate at a constant distance from the substrate and then coating. The metal alloy or metal ingots to be sublimated are moved simultaneously by rotation in a plane parallel with a scrolling plane of the substrate. The process for coating a face of a substrate such as steel band by scrolling and by deposition of a metal or its alloy layer to be sublimated, comprises placing the metal or metal alloy with respect to the face of the substrate in the form of two ingots contacting one another, and turning the surface of the ingots towards the face of the substrate at a constant distance from the substrate and then coating. The metal alloy or metal ingots to be sublimated are moved simultaneously by rotation in a plane parallel with a scrolling plane of the substrate and in a direction parallel with the direction of scrolling of the substrate. The surface of the ingots opposed to that turned towards the substrate is in contact with a tilted plane. The substrate scrolls in a vertical position. The metal or metal alloy is identical or different for each face of the substrate. The deposition of a metal or metal alloy layer is carried out by self-induced plasma evaporation in a reactive atmosphere. Independent claims are included for: (1) an installation for coating a face of a substrate; and (2) a device for supplying a metal or metal alloy to the coating installation.