Non-oriented electromagnetic steel sheet having insulating film excellent in film properties
US6383650B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Jun 23, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides a film-forming agent for an insulating film-coated non-oriented electromagnetic steel sheet showing a high space factor, and excellent in blanking quality, adhesion of the film and slip characteristics subsequent to stress relief annealing, a non-oriented electromagnetic steel sheet having the insulating film and a method for producing the same. The present invention provides a non-oriented electromagnetic steel sheet having an insulating film excellent in film properties, the insulating film comprising a metal phosphate and an organic resin as the principal components, the 1s peak intensity of C being from 4 to 20 times as much as the 2s peak intensity of P when the insulating film is measured by photoelectron spectral analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.