NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

A non-directional electrical steel sheet according to an embodiment of the present invention comprises: by weight%, 2.5 to 4.5% of Si; 0.04 to 1.4% of Mn; 0.2 to 1.1% of Al; 0.0005 to 0.003% of Bi: 0.0005 to 0.003% of Zr; 0.0005 to 0.004% of As; and the balance of Fe and inevitable impurities, where...

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Bibliographische Detailangaben
Hauptverfasser:	PARK, Junesoo, HONG, Jaewan, JOO, Hyung Don
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INDUCTANCES MAGNETS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A non-directional electrical steel sheet according to an embodiment of the present invention comprises: by weight%, 2.5 to 4.5% of Si; 0.04 to 1.4% of Mn; 0.2 to 1.1% of Al; 0.0005 to 0.003% of Bi: 0.0005 to 0.003% of Zr; 0.0005 to 0.004% of As; and the balance of Fe and inevitable impurities, wherein an innermost portion containing 5% O is 5 µm or less in length from the surface of the steel sheet in the inward direction.