Repair method for textured and/or smooth steel surfaces on endless strips or pressing sheets
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United States of America Patent
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May 3, 2005
Grant Date -
May 15, 2003
app pub date -
Sep 27, 2002
filing date -
Sep 28, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for touching up and/or repairing minor surface damage in a large-format pressing plate or an endless strip 3 made of steel sheet, with a textured surface 4, for surface embossing of wood materials or laminate panels, has the damaged surface subjected to microgalvanic treatment. In order to simply repair the damage locations and to allow a longer tool life of the pressing sheets, it is provided, that an electrolyte solution that contains metal ions and iron is used, which is coordinated with the base material of the pressing plate or the endless strip 3. This yields the particular advantage that no color deviations are formed as compared with the damaged locations and that a conventional chromium-plating process can be used. Thus the damaged locations 2 are not washed out and thereby become visible again, during subsequent touch-up chromium-plating, because of the electrolyte used.
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