发明名称 |
Process for corrosion protection of iron containing materials |
摘要 |
The present invention relates to a process for corrosion protection of an iron-containing substrate wherein a first zinc-nickel alloy layer, a second zinc-nickel alloy layer and a black passivate layer are deposited onto the substrate. The nickel concentration in the second zinc-nickel alloy layer is higher than the nickel concentration in the first zinc-nickel alloy layer. The substrate surface obtained is homogenously black with an appealing decorative appearance and both resistance against white rust and red rust are improved. |
申请公布号 |
EP2784188(A1) |
申请公布日期 |
2014.10.01 |
申请号 |
EP20130161011 |
申请日期 |
2013.03.26 |
申请人 |
ATOTECH DEUTSCHLAND GMBH |
发明人 |
DINGWERTH, DR. BJÖRN;KRÜGER, MIKE |
分类号 |
C25D3/56;C25D5/10;C25D5/14;C25D5/48 |
主分类号 |
C25D3/56 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|