METHOD OF PRODUCTION OF ISOTROPIC ELECTRICAL STEEL WITH PHOSPHORUS

FIELD: metallurgy; production of isotropic electrical steel used for manufacture of magnetic circuits for electrical equipment working in revolving magnetic field. ^ SUBSTANCE: proposed method includes melting, hot and cold rolling and annealing. After melting, steel contains 0.05-0.40% of phosphoru...

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Bibliographische Detailangaben
Hauptverfasser:	ZAVERJUKHA A.A, KONDRATKOV D.A, CHEGLOV A.E
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS 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 MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	FIELD: metallurgy; production of isotropic electrical steel used for manufacture of magnetic circuits for electrical equipment working in revolving magnetic field. ^ SUBSTANCE: proposed method includes melting, hot and cold rolling and annealing. After melting, steel contains 0.05-0.40% of phosphorus. After cold rolling, re-crystallization annealing is performed in continuous furnace followed by additional annealing performed in bell-type furnace. If necessary, straightening annealing may be performed in continuous furnace at application of insulating coat. Proposed method makes it possible to avoid increase of specific losses-finely dispersed phosphorus-containing phase. ^ EFFECT: enhanced efficiency; reduced losses of phosphorus-containing phase. ^ 2 cl, 1 dwg, 2 tbl, 1 ex