Electrical steel sheet provided with insulating coating
US10403417B2 · kind B2 · utility
1Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2014 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Dec 16, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical steel sheet is provided with insulating coating. The insulating coating contains Si and Fe. The coating weight of Si in the insulating coating in terms of SiO2 is 50% to 99% of the total coating weight. The ratio (Fe/Si) of the content of Fe to the content of Si in the insulating coating is 0.01 to 0.6 on a molar basis. The ratio (C (the organic resin+the lubricant)/(Fe2O3+SiO2)) of the coating weight of the organic resin and/or the lubricant in terms of C to the sum of the coating weight of Fe in terms of Fe2O3 and the coating weight of Si in terms of SiO2 preferably is 0.05 to 0.8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.