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PROCESS AND DEVICE FOR RETOUCHING AND/OR REPAIRING SMALL SUPERFICIAL DAMAGES OF A PRESS PLATE OR AN ENDLESS BAND USED FOR THE IMPRESSION OF A STRUCTURE INTO THE SURFACE PORTION OF PLASTIC-COATED WOODEN OR LAMINATED BOARDS
PROCESS AND DEVICE FOR RETOUCHING AND/OR REPAIRING SMALL SUPERFICIAL DAMAGES OF A PRESS PLATE OR AN ENDLESS BAND USED FOR THE IMPRESSION OF A STRUCTURE INTO THE SURFACE PORTION OF PLASTIC-COATED WOODEN OR LAMINATED BOARDS
A process and device are disclosed for retouching and/or repairing small superficial damages of a large-format press plate or endless belt made of sheet metal, in particular sheet steel, having a structured metal coating and a hard chromium plating for the impression of a structure into the surface portion of plastic-coated wooden or laminated boards. Each damaged spot is framed with a mask, etched and micro-metallised by micro-electroplating. In order to make it easier and less expensive to retouch or repair such plates, a galvanic solution is applied on the framed and etched damaged spots with less than 14 mm2 surface and an electrode tip is dipped therein to carry out a micro-electroplating. The etched damaged spot may be at first provided with a thin nickel layer by micro-electroplating and then with a copper layer which may then be structured by hand, if required, and coated with a cobalt hard layer. A micro-electroplating device useful to carry out this process has a current rectifier with reversible poles, an electrode with a tip that can be dipped into the etchant or galvanic solution and a connector of opposite pole to be connected to the steel sheet.
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机译:公开了一种用于修饰和/或修复由金属板,特别是金属板制成的大幅面压板或环形带的微小表面损伤的方法和装置,所述压板或环形带具有结构化金属涂层和硬铬镀层,以产生压痕。结构在涂塑木板或层压板的表面部分。每个损坏的点都用掩模框住,并通过微电镀进行蚀刻和微金属化。为了使修复或修复此类板变得更容易且更便宜,将电镀溶液涂在框架和蚀刻后的表面小于14 mm 2的损坏点上,并将电极头浸入其中以进行微处理。电镀。可以首先通过微电镀为蚀刻的损坏点提供薄的镍层,然后提供铜层,然后如果需要的话可以通过手工将其铜化,并涂覆钴硬层。可用于执行此过程的微电镀装置具有带可逆极的电流整流器,带有可浸入蚀刻剂或电镀溶液中的尖端的电极以及与极板连接的相反极的连接器。
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