发明名称 |
Electrolyctic plating of steel substrate |
摘要 |
A new combination of steel strip electrolytic plating process steps which eliminate iron ion dissolution from continuous-strip steel substrate into chemically-corrosive plating solutions, such as Halogen-bath or methylsulphonic acid plating solutions, of horizontal passline electrolytic tin plating means which plate a single strip surface at a time. The previous use of a cyanide in Halogen-bath tin plating operations which formed a hazardous precipitant (prussian blue) is eliminated by eliminating iron ion dissolution from the steel strip substrate. And conversion of stannous ions to stannic ions, which formed additional Halogen-bath precipitant, is substantially eliminated. Also, new electrolytic plated product, with improved corrosion-prevention characteristics, is provided in which a flat-rolled steel substrate strike-coat of tin and/or nickel is plated simultaneously with electrolytic pickling of such cleansed substrate; pickle-plating is carried out prior to finish-surface electrolytic tin plating in such a horizontal passline electrolytic tin plating means. |
申请公布号 |
WO9725454(A3) |
申请公布日期 |
1997.09.04 |
申请号 |
WO1996US20433 |
申请日期 |
1996.12.20 |
申请人 |
WEIRTON STEEL CORPORATION |
发明人 |
SINSEL, JOHN, A.;AUSTIN, LOWELL, W. |
分类号 |
C25D5/10;C25D5/36;C25D5/48;C25D7/06 |
主分类号 |
C25D5/10 |
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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