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Method for creating a dark color protective layer on a thin plate product made of titanium-zinc alloy
Method for creating a dark color protective layer on a thin plate product made of titanium-zinc alloy
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机译:在钛锌合金薄板产品上形成深色保护层的方法
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摘要
The invention relates to the production of protective coatings with a dark color by pickling rolled flat objects, made from titanium zinc, for use in construction. The flat objects are pickled in an aqueous pickling bath containing a mixed acid of sulphuric acid and nitric acid and passivated after rinsing by application of a protective layer. Rolled flat objects such as those made from a titanium zinc alloy are used. The alloy comprises mainly zinc of high purity with additionally a copper content of 1.0 to 2.0 wt. %, a titanium content of 0.06 to 0.2 wt. % and a maximum aluminum contant of 0.015 wt. %.
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