Steel sheets for preparing welded and coated cans and method for manufacturing the same
US4487663A · kind A · utility
7Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1983 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Apr 11, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S205/917
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A steel sheet utilized to prepare cans comprises an iron base sheet, a Fe--Sn alloy layer formed on the iron base sheet and containing 0.05-0.7 g/m.sup.2 of tin and 40-80 atomic % of iron, and a composite oxide film formed on the alloy layer and containing Fe, Sn, Cr and O. The composite oxide film is formed by applying a cathodic dichromate treatment to the steel sheet which has been quenched and cooled to form an oxide film on the alloy layer, the oxide film containing both of tin and iron oxides being converted to the composite oxide film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.