NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

According to an embodiment of the present invention, a non-oriented electrical steel sheet comprises: 0.005wt% or less of C (excluding 0 wt%); 1.5-3.0 wt% of Si; 0.4-1.5 wt% of Mn; 0.005 wt% or less of S (excluding 0 wt%); 0.0001-0.7 wt% of Al; 0.005 wt% or less of N (excluding 0 wt%); 0.005 wt% or...

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Bibliographische Detailangaben
Hauptverfasser:	PARK JUNESOO, KIM YUNSU, JOO HYUNGDON, KIM YONGSOO, HONG JAEWAN
Format:	Patent
Sprache:	eng ; kor
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:	According to an embodiment of the present invention, a non-oriented electrical steel sheet comprises: 0.005wt% or less of C (excluding 0 wt%); 1.5-3.0 wt% of Si; 0.4-1.5 wt% of Mn; 0.005 wt% or less of S (excluding 0 wt%); 0.0001-0.7 wt% of Al; 0.005 wt% or less of N (excluding 0 wt%); 0.005 wt% or less of Ti (excluding 0 wt%); 0.001-0.02 wt% of Cu; 0.01-0.05 wt% of Sb; 0.001-0.1 wt% of Sn; 0.005-0.07 wt% of P; and remaining Fe and other inevitable impurities. The content of Mn, Si, and Al satisfies the below [Formula 1], and the content of Sb, Sn, and P satisfies the below [Formula 2]. The number of (Mn, Cu)S precipitates with the size of 0.5 ㎛ or smaller is 1/㎛^3 or less. [Formula 1] 0.19