Electrical steel sheet with insulating film
AssigneeJfe Steel Corporation
InventorsTakashi Terashima, Karin Kokufu, Makoto Watanabe, Toshito Takamiya
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Abstract
An electrical steel sheet with an insulating film, the steel sheet having an insulating film containing a crystalline fibrous material on a surface of the steel sheet, in which a ratio (LRD/LTD) of a length in a rolling direction (LRD) of the crystalline fibrous material in a cross section in the rolling direction of the insulating film to a length in a direction perpendicular to the rolling direction (LTD) of the crystalline fibrous material in a cross section in the direction perpendicular to the rolling direction of the insulating film is 1.5 or more and 50.0 or less.
Claims21
An electrical steel sheet with an insulating film, the steel sheet comprising an insulating film containing a crystalline fibrous material having an aspect ratio of 1.5 or more on a surface of the steel sheet, wherein a ratio (LRD/LTD) of a length in a rolling direction (LRD) of the crystalline fibrous material in a cross section in the rolling direction of the insulating film to a length in a direction perpendicular to the rolling direction (LTD) of the crystalline fibrous material in a cross section in the direction perpendicular to the rolling direction of the insulating film is 1.5 or more and 50.0 or less.
An electrical steel sheet with an insulating film, the steel sheet comprising an insulating film containing cordierite having an aspect ratio of 1.5 or more on a surface of the steel sheet, wherein a ratio (LRD/LTD) of a length in a rolling direction (LRD) of the cordierite in a cross section in the rolling direction of the insulating film to a length in a direction perpendicular to the rolling direction (LTD) of the cordierite in a cross section in the direction perpendicular to the rolling direction of the insulating film is 1.5 or more and 50.0 or less.
An electrical steel sheet with an insulating film, the steel sheet comprising an insulating film containing a crystalline fibrous material having an aspect ratio of 1.5 or more on a surface of the steel sheet, wherein a ratio (LRD/LTD) of a length in a rolling direction (LRD) of the crystalline fibrous material in a cross section in the rolling direction of the insulating film to a length in a direction perpendicular to the rolling direction (LTD) of the crystalline fibrous material in a cross section in the direction perpendicular to the rolling direction of the insulating film is 1.5 or more and 50.0 or less, wherein the crystalline fibrous material consists of cordierite.
Dependencies are inferred from the claim text.