Method of checking forsterite, apparatus that evaluates forsterite, and production line that manufactures steel sheet
US9939382B2 · kind B2 · utility
1Cited by
1References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 24, 2014 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Jan 14, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8887
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The location where forsterite is present is checked in a region from which light excited by an electron beam is emitted when a material containing forsterite is irradiated with an electron beam. The material is preferably a grain oriented electrical steel sheet having a forsterite layer. In addition, it is preferable that the accelerating voltage be 10 kV or more when an electron beam is radiated when the material is a grain oriented electrical steel sheet having a tension coating layer on the forsterite layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.