Pickling method for electrical steel bands
US5061321A · kind A · utility
3Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1989 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Oct 12, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23G1/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides a pickling method for electrical steel bands having excellent surface properties without requiring any especial treatment and increasing costs, where the pickling conditions of the hot rolled steel band are optimized not only in view of de-scaling properties but also interglanular corrosions, and the pickling is performed with hydrochloric acid for a period of a specified time determined by Si content of steel, temperature and HCl concentration of a pickling liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.