METHOD OF PRODUCTION OF ISOTROPIC ELECTRICAL STEEL WITH PHOSPHORUS Russian patent published in 2005 - IPC

Abstract RU 2262540 C1

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

Similar patents RU2262540C1

Title	Year	Author	Number
METHOD OF PRODUCTION OF ISOTROPIC ELECTRICAL STEELS	2004	Kondratkov Dmitrij Aleksandrovich Cheglov Aleksandr Egorovich Sljusar' Nelli Jur'Evna Zaverjukha Anatolij Aleksandrovich	RU2270261C1
METHOD OF PRODUCTION OF NONORIENTED ELECTRICAL-SHEET STEEL	2001	Nastich V.P. Mindlin B.I. Cheglov A.E. Gvozdev A.G. Logunov V.V. Ryndin V.A. Tishchenko A.D.	RU2217509C2
METHOD FOR MAKING ISOTROPIC ELECTRICAL STEEL	2002	Nastich V.P. Mindlin B.I. Cheglov A.E. Logunov V.V. Gvozdev A.G. Barybin V.A.	RU2223338C1
METHOD OF PRODUCING ISOTROPIC ELECTRICAL-SHEET STEEL	1998	Nastich V.P. Frantsenjuk L.I. Cheglov A.E. Mindlin B.I. Gvozdev A.G. Logunov V.V. Okolelov O.P.	RU2149194C1
METHOD OF PRODUCTION OF COLD-ROLLED ELECTRICAL ISOTROPIC STEEL	2002	Nastich V.P. Mindlin B.I. Kukartsev V.M. Cheglov A.E. Barybin V.A.	RU2228374C2
METHOD FOR MAKING ISOTROPIC ELECTRICAL STEEL	2002	Nastich V.P. Mindlin B.I. Cheglov A.E. Tishchenko A.D. Gvozdev A.G. Logunov V.V. Barybin V.A.	RU2223337C1
METHOD FOR PRODUCING ISOTROPIC ELECTRICAL STEEL	2002	Nastich V.P. Mindlin B.I. Cheglov A.E. Gvozdev A.G. Logunov V.V. Barybin V.A.	RU2230801C2
METHOD OF PRODUCTION OF ISOTROPIC ELECTRICAL-SHEET STEEL	1999	Mindlin B.I. Cheglov A.E. Gvozdev A.G. Logunov V.V. Parakhin V.I.	RU2155234C1
METHOD FOR PRODUCTION OF COLD-ROLLED ISOTROPIC ELECTRICAL-SHEET STEEL	2002	Lisin V.S. Skorokhodov V.N. Nastich V.P. Mindlin B.I. Cheglov A.E. Kukartsev V.M. Chernov P.P. Barybin V.A.	RU2211249C1
METHOD OF MAKING ISOTROPIC ELECTRICAL STEEL	2001	Nastich V.P. Zaverjukha A.A. Mindlin B.I. Cheglov A.E. Tishchenko A.D. Gvozdev A.G. Logunov V.V. Ryndin V.A.	RU2203332C2

RU 2 262 540 C1

Authors

Kondratkov D.A.

Cheglov A.E.

Zaverjukha A.A.

Dates

2005-10-20—Published

2004-10-12—Filed