Bath for surface treatment, method of producing surface-treated steel plate by using the bath for surface treatment, and surface treated steel plate produced by the same method
US10000858B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Jul 23, 2014 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Apr 1, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12972
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
To provide a bath for surface treatment capable of forming a surface-treating film having excellent corrosion resistance by a high-speed electrolytic treatment, and a method of producing a surface-treated steel plate having excellent corrosion resistance and closely adhering property to the coating maintaining good productivity. A bath for surface treatment used for forming a surface-treating film on the surface of a steel plate by cathodic electrolysis, the bath for surface treatment containing Zr and/or Ti, and a polycarboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.