Method of improving the surface insulation resistance of electrical steels having an insulative coating thereon
US4123337A · kind A · utility
2Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1977 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | Nov 2, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/14783
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of improving the surface insulation resistance of electrical steels having an insulative coating thereon by subjecting the electrical steels to electrochemical treatment as part of the routing thereof, to remove small metallic nodules, particles and the like extending through or protruding above the insulative coating. Following the electrochemical treatment, the electrical steels are rinsed and dried.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.