Method of making non-oriented electrical steel sheets having excellent magnetic properties under low magnetic field
US5108522A · kind A · utility
3Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1989 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Oct 12, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D8/1272
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is to produce non-oriented electrical steel sheets having excellent magnetic property under low magnetic field by effectively checking thermal stress from introducing during cooling in a final annealing without decreasing productivity, for which when a silicon steel sheet having passed a cold rolling is cooled after a final continuous annealing, especial cooling conditions are specified only to a temperature range giving bad influences to the magnetic properties under the low magnetic field so as to prevent the introduction of the thermal strain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.