发明名称 |
Process for preparing Zn-Fe base alloy electroplated steel strips |
摘要 |
Steel strips are electroplated with a Zn-Fe base alloy containing 10 to 30% by weight of iron in a chloride bath which contains zinc and ferrous chlorides to give a total concentration of zinc and ferrous ions of from 1.0 mol/l to the solubility limit with a weight ratio of Fe2+/Zn2+ between 0.10 and 0.35, and chloride ions in a total concentration of at least 6.0 mol/l under electrolytic conditions: pH 1.0-6.0, current density 80-200 A/dm2, and relative flow velocity 30-200 m/min. The bath may further contain a polycarboxylic acid such as citric acid and a Zn-Fe-P alloy plating may be deposited when the bath further contains hypophosphorous acid.
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申请公布号 |
US4541903(A) |
申请公布日期 |
1985.09.17 |
申请号 |
US19840666313 |
申请日期 |
1984.10.30 |
申请人 |
KAWASAKI STEEL CORPORATION |
发明人 |
KYONO, KAZUAKI;KUROKAWA, SHIGEO;KIMURA, HAJIME;IRIE, TOSHIO;YOSHIHARA, TAKAHISA;MATSUDA, AKIRA |
分类号 |
C25D5/26;C25D3/56;(IPC1-7):C25D3/56;C25D7/00 |
主分类号 |
C25D5/26 |
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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