Grain-oriented electrical steel sheet, and steel sheet serving as base sheet for grain-oriented electrical steel sheet
AssigneeNippon Steel Corporation
InventorsShuichi NAKAMURA, Yoshiyuki USHIGAMI, Hiroyasu FUJII
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Abstract
A grain-oriented electrical steel sheet according to an aspect of the present invention includes an underlying steel sheet and a tension-insulation coating arranged on the surface of the underlying steel sheet, and a ten-point average roughness RzL in an L direction obtained when the tension-insulation coating is removed from the grain-oriented electrical steel sheet with an alkaline solution, and then the surface of the underlying steel sheet is measured in a rolling direction is 6.0 μm or less.
Claims16
A grain-oriented electrical steel sheet comprising an underlying steel sheet and a tension-insulation coating arranged on a surface of the underlying steel sheet,
- wherein the underlying steel sheet obtained by removing the tension-insulation coating from the grain-oriented electrical steel sheet with an alkaline solution has a ten-point average roughness RzL in a rolling direction of 6.0 μm or less.
Dependencies are inferred from the claim text.