METHOD FOR REFINING MAGNETIC DOMAIN OF GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND DEVICE THEREFOR

A method and a device for refining a magnetic domain of a grain-oriented electrical steel sheet are provided. According to the present invention, a method for refining a magnetic domain of a grain-oriented electrical steel sheet stably performs permanent magnetic domain refinement treatment when the...

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Bibliographische Detailangaben
Hauptverfasser:	CHUN MYUNG-SIK, KWON OH-YEOUL, HONG SEONGOL, PARK HYUNUL, LIM CHOONG SOO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MACHINE TOOLS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A method and a device for refining a magnetic domain of a grain-oriented electrical steel sheet are provided. According to the present invention, a method for refining a magnetic domain of a grain-oriented electrical steel sheet stably performs permanent magnetic domain refinement treatment when the electrical steel sheet is processed at a high speed of 2m/s or higher, and comprises: a snaking control step of allowing the steel sheet to move straight without being biased to the left or right along the center of a production line; a tension control step of providing tension to the steel sheet such that the steel sheet is maintained in a flatly spread state; a steel sheet support roll position adjusting step of controlling a vertical direction position of the designated steel sheet while supporting the steel sheet; and a laser emitting step of emitting laser beams so as to melt the steel sheet and form a groove on the surface of the steel sheet. 提供种定向电工钢板的磁畴细化方法及装置。本发明的定向电工钢板的磁畴细化方法，即使钢板以2m/s以上的高速行进，也能够稳定地对所述钢板