Method for producing a thin tin and nickel plated steel sheet for welded can material
US4601957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1985 |
| Grant date | Jul 22, 1986 |
| Priority date | — |
| Expiry date | Aug 29, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12854
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for producing a thin tin and nickel plated steel sheet having a surface structure in which the distribution of numerous nodules of metallic tin are observed by using an electron microscope on an iron-tin-nickel alloy layer formed on a steel sheet which comprises electroplating nickel on the steel sheet which is anodically treated in an alkaline electrolyte with a pH of above 10 followed by electrotinplating the nickel plated steel sheet, reflowing, quenching, and then chromate treating the tin and nickel plated steel sheet. This tin and nickel plated steel sheet is suitable for welded can materials since it is excellent in corrosion resistance after lacquering and weldability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.