GRAIN-ORIENTED ELECTRICAL STEEL SHEET HAVING HIGH TENSILE STRENGTH INSULATING FILM AND METHOD OF TREATMENT OF INSULATING FILM
Grain-oriented electrical steel sheet having a chrome-free high tensile strength insulating film characterized by comprising steel sheet on the surface of which is formed an insulating film containing a phosphate and colloidal silica as main ingredients and containing crystalline magnesium phosphate...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | Grain-oriented electrical steel sheet having a chrome-free high tensile strength insulating film characterized by comprising steel sheet on the surface of which is formed an insulating film containing a phosphate and colloidal silica as main ingredients and containing crystalline magnesium phosphate uniformly dispersed over the entire surface. |
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