Non-oriented magnetic steel plate with excellent electro-magnetic properties and process for making the same

The present invention is related to a non-oriented magnetic steel plate with excellent electro-magnetic properties and a process for making the same. The objective of the present invention is to provide a non-oriented magnetic steel plate with a high magnetic permeability and a process for making th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHANG, SAM-KYU, BAE, BYUNG-KEUM
Format:	Patent
Sprache:	eng
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:	The present invention is related to a non-oriented magnetic steel plate with excellent electro-magnetic properties and a process for making the same. The objective of the present invention is to provide a non-oriented magnetic steel plate with a high magnetic permeability and a process for making the same. The non-oriented magnetic steel plate according to the present invention comprises: less than 0.02% of C, less than 1.0% of Si, less than 0.5% of Mn, less than 0.15% of P, less than 0.02% of S, less than 0.005% of Sol.Al, less than 0.006% of N, 0.03 to 0.30% of Sn, and 0.0004 to 0.003% of B. Preferably, the B/N ratio is 0.1 to 0.5. Furthermore, the steel plate also comprises Fe and other inevitable impurities.