Method for refining magnetic domains of grain-oriented electrical steel sheet

The method for refining the magnetic domains of a grain-oriented electrical steel sheet, according to one embodiment of the present invention, comprises the steps of: preparing a grain-oriented electrical steel sheet; and forming grooves by emitting a quasi-continuous laser beam having a duty cycle...

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Bibliographische Detailangaben
Hauptverfasser:	KWON OH-YEOUL, PARK JONG-TAE, MIN KI-YOUNG, HONG SEONGOL, PARK SE-MIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The method for refining the magnetic domains of a grain-oriented electrical steel sheet, according to one embodiment of the present invention, comprises the steps of: preparing a grain-oriented electrical steel sheet; and forming grooves by emitting a quasi-continuous laser beam having a duty cycle of 98.0% to 99.9% to the surface of the grain-oriented electrical steel sheet. 根据本发明一实施例的取向电工钢板的磁畴细化方法包括：准备取向电工钢板的步骤；及通过在取向电工钢板的表面照射具有98.0％至99.0％的占空比的准连续激光束来形成凹槽的步骤。