| 摘要 |
The invention relates to a method for selectively coating or etching surfaces during which the surface areas that are not to be treated are masked with a masking device (18) during the actual coating or etching process. The masking device (18) is pressed against these surface areas in a liquid-tight manner by a magnetic interaction between a magnet device (24) and a counter magnet device (26), during which at least one of the magnet devices (24) is situated on the side of the masking device (18) facing away from the surface. The inventive method is particularly suited for electroplating (endless) metal strips (12). The metal strips (12) are moved past, for example, an anode spraying head (16) for applying a suitable electrolyte, around which a masking strip (18) is guided in a circle with a ferromagnetic mask pressing strip (24) situated on the side of the masking strip facing away from the metal strip. Opposite the anode spraying head (16), a carrying strip (30) is guided in a circle around a magnet head (26) having a number of electromagnets (26,, 26g). These are selected in such a manner that said strips (12, 18, 24, 30) are pressed tightly against one another and are moved past the anode spraying head (16) as a single unit. The invention also relates to a masking system and to a selective coating or etching system for carrying out this method. ® KIPO & WIPO 2007
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