Patent ID: 11948711
Assignee: NIPPON STEEL CORPORATION
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  H  Y | IPC C  H

Claim 7:
8. The grain oriented electrical steel sheet according to claim 4,
wherein, when glow emission spectroscopic spectrums of Al and Fe are measured by conducting a glow discharge emission spectroscopy from a surface of the glass film toward a depth direction,
when TAlp is regarded as a time at which Al shows a maximum emission intensity,
when TFe60 is regarded as a time at which an Fe emission intensity becomes 60% as compared with a saturation value of Fe emission intensity, and
when TFe90 is regarded as a time at which an Fe emission intensity becomes 90% as compared with the saturation value of Fe emission intensity,
the TAlP, the TFe60, and the TFe90 satisfy
TFe60≤TAlp≤TFe90.