发明名称 |
METHOD FOR THE PRODUCTION OF DARK PROTECTIVE LAYERS ON FLAT OBJECTS MADE FROM TITANIUM ZINC |
摘要 |
<p>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. %.</p> |
申请公布号 |
EP1444381(B2) |
申请公布日期 |
2008.09.10 |
申请号 |
EP20020787688 |
申请日期 |
2002.11.15 |
申请人 |
RHEINZINK GMBH & CO. KG |
发明人 |
SCHOENNENBECK, MARIANNE;STRADMANN, ADOLF |
分类号 |
C23C22/53;C23C22/78;B05D7/00;C22C18/02 |
主分类号 |
C23C22/53 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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