METHOD OF PRODUCING DOUBLE ORIENTED SILICON STEEL SHEET

PROBLEM TO BE SOLVED: To provide a double oriented silicon steel sheet having good magnetic properties and reduced variations. SOLUTION: This method of producing a double oriented silicon steel sheet includes a process in which steel containing, by mass, 0.02 to 0.20% C, 2.4 to 4.0% Si and 0.20 to 2...

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Bibliographische Detailangaben
Hauptverfasser:	SANO NAOYUKI, KANZAKI YUTAKA, TOMITA TOSHIRO, KAMINOTANI SHIGEO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTRICITY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS 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 TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSFORMERS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a double oriented silicon steel sheet having good magnetic properties and reduced variations. SOLUTION: This method of producing a double oriented silicon steel sheet includes a process in which steel containing, by mass, 0.02 to 0.20% C, 2.4 to 4.0% Si and 0.20 to 2.0% Mn is subjected to hot rolling, is next subjected to cold rolling under the condition is which the ratio between the diameter D of a work roll and the thickness(t) of the steel sheet in the process of the cold rolling (D/t) satisfies the relation of D/t>=80 or D/t>=100/t and is then subjected to annealing in an (α+γ) two-phase region under the reduced pressure with a separation material for annealing interposed between the steel sheets.