Non-oriented electrical steel sheet having high magnetic flux density and motor
US10597759B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2014 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Nov 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A non-oriented electrical steel sheet having a chemical composition comprising C: not more than 0.010 mass %, Si: 1.0-7.0 mass %, Mn: 0.001-3.0 mass %, sol. Al: 0.0001-3.5 mass %, P: 0.01-0.2 mass %, S: not more than 0.010 mass %, N: not more than 0.010 mass % and the remainder being Fe and inevitable impurities, wherein a ratio (P120/Fe700) of a peak-peak height P120 of P near to an electronic energy of 120 eV to a peak-peak height Fe700 of Fe near to an electronic energy of 700 eV in an Auger differential spectrum obtained by analyzing a broken surface of a grain boundary through Auger electron spectroscopy is not less than 0.1 and a sheet thickness is 0.10-0.50 mm, and a motor using such a non-oriented electrical steel sheet as an iron core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.