| 摘要 |
The present invention provides a grain-oriented electrical steel sheet with reduced iron loss over a wide range of sheet thickness by providing a grain-oriented electrical steel sheet with an actually measured sheet thickness t (mm) that includes a closure domain region extending linearly in a direction from 60° to 120° with respect to the rolling direction on a surface of the steel sheet, the closure domain region being formed periodically at a spacing s (mm) in the rolling direction, such that h ‰¥ 74.9t + 39.1 (0.26 ‰¥ t), h ‰¥ 897t - 174.7 (t > 0.26), (w × h)/(s × 1000) ‰¤ -12.6t + 7.9 (t > 0.22), and (w × h)/(s × 1000) ‰¤ -40.6t + 14.1 (t ‰¤ 0.22), where h (µm) is the depth and w (µm) is the width of the closure domain region. |
