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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Bibliographische Detailangaben
Hauptverfasser: ANDOU, FUMIKAZU, TAKEDA, KAZUTOSHI, YAMAZAKI, SHUICHI, FUJII, HIROYASU, TAKAHASHI, FUMIAKI
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.