Hot dip coating apparatus
US7981480B2 · kind B2 · utility
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4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2003 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Dec 15, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C2/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Hot dip coating apparatus for coating a steel strip in an Al—Zn alloy bath comprises components that are made from stainless steel containing an appreciable amount of nitrogen distributed substantially uniformly through its microstructure. The nitrogen is incorporated into the stainless steel as an alloy additive and improves the steel's corrosion resistance and minimizes pitting and thinning of the component when immersed in the metal bath for extended periods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.