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ELECTROCHEMICAL ROUGHING OF SURFACES OF ALUMINUM OR ALUMINUM ALLOYS.
ELECTROCHEMICAL ROUGHING OF SURFACES OF ALUMINUM OR ALUMINUM ALLOYS.
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机译:铝或铝合金表面的电化学粗加工。
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摘要
Aluminum or its alloys are electrochemically grained by using alternate current and an aqueous electrolyte comprising specific amounts of hydrochloric acid and an oxy-acid and/or a dicarboxylic acid, preferably lactic acid and/or succinic acid, respectively. Aluminum (or an alloy thereof) thus grained, can be coated with a photosensitive layer whereby forming a printing plate. Before coating it with the photosensitive layer, the plate can also be anodized by techniques well known to those skilled in the art.
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