Patent · US Expired

Boron-containing electrical steel having a calcium borate coating and magnesia overcoating, and process therefor

US4096001A · kind A · utility

4Cited by
7References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 7, 1977
Grant dateJun 20, 1978
Priority date
Expiry dateMar 7, 1997

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/12618
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A relatively thin coat of calcium metaborate is electrolytically-applied 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.