Coated silicon-iron product and process therefor using calcium formate
US4160708A · kind A · utility
1Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1978 |
| Grant date | Jul 10, 1979 |
| Priority date | — |
| Expiry date | Apr 24, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12618
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A relatively thin coat of calcium metaborate is electrolytically-applied from a solution of calcium formate with boric acid directly to the surface of a boron-containing electrical steel and a substantially thicker overcoat of Mg(OH).sub.2 is electrolytically-deposited on the calcium metaborate coating to provide a duplex coating about 0.2 mil thick.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.