There is provided a non-oriented electrical steel sheet that includes a base metal steel sheet and an insulating coating film that is formed on a surface of the base metal steel sheet, wherein the insulating coating film mainly contains metal phosphate, organic resin, and water-soluble organic compo
There is provided a non-oriented electrical steel sheet that includes a base metal steel sheet and an insulating coating film that is formed on a surface of the base metal steel sheet, wherein the insulating coating film mainly contains metal phosphate, organic resin, and water-soluble organic compound, the metal phosphate contains at least aluminum as a metallic element, the organic resin has an SP value being within a range of 18.0 (MPa)0.5 or more to less than 24.0 (MPa)0.5, the water-soluble organic compound has an SP value being within a range of 19.0 (MPa)0.5 or more to less than 35.0 (MPa)0.5, and when measurement by X-ray diffractometry is performed on the insulating coating film, a degree of crystallinity of aluminum phosphate calculated from a peak from the metal phosphate is within a range of 0.5 to 5.0%.
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1. A non-oriented electrical steel sheet comprising a base metal steel sheet and an insulating coating film that is formed on a surface of the base metal steel sheet, whereinthe insulating coating film contains metal phosphate, organic resin, and water-soluble organic compound at 50 mass % or more i
1. A non-oriented electrical steel sheet comprising a base metal steel sheet and an insulating coating film that is formed on a surface of the base metal steel sheet, whereinthe insulating coating film contains metal phosphate, organic resin, and water-soluble organic compound at 50 mass % or more in total with respect to a total mass of the insulating coating film,the metal phosphate contains at least aluminum as a metallic element,the organic resin has an SP value that is within a range of 18.0 (MPa)0.5 or more to less than 24.0 (MPa)0.5,the water-soluble organic compound has an SP value that is within a range of 19.0 (MPa)0.5 or more to less than 35.0 (MPa)0.5, andwhen measurement by X-ray diffractometry is performed on the insulating coating film, a degree of crystallinity of aluminum phosphate calculated from a peak from the metal phosphate is within a range of 0.5 to 5.0%. 2. The non-oriented electrical steel sheet according to claim 1, wherein the metal phosphate further contains a divalent metallic element M other than aluminum as a metallic element. 3. The non-oriented electrical steel sheet according to claim 2, wherein the metallic element M is one or more types selected from the group of Zn, Co, Mg, Mn, and Ni. 4. The non-oriented electrical steel sheet according to claim 1, wherein a content of the organic resin is, per 100 parts by weight of the metal phosphate, 3 parts by weight or more to 50 parts by weight or less. 5. The non-oriented electrical steel sheet according to claim 2, wherein a content of the organic resin is, per 100 parts by weight of the metal phosphate, 3 parts by weight or more to 50 parts by weight or less. 6. The non-oriented electrical steel sheet according to claim 3, wherein a content of the organic resin is, per 100 parts by weight of the metal phosphate, 3 parts by weight or more to 50 parts by weight or less.
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