METHOD FOR PRODUCING ISOTROPIC ELECTRICAL STEEL Russian patent published in 2004 - IPC

Abstract RU 2230801 C2

FIELD: metallurgy, namely production of isotropic electrical steel used for making magnetic circuits of electric motors.

SUBSTANCE: method comprises steps of melting steel, hot rolling, etching, cold rolling, decarburizing and recrystallization annealing; After hot rolling of strip at outlet of finish stand cooling strip in air before water sprinkling of it for time period determined according to relation at content of silicon 1.4 -2.75% and content of phosphorus 0.05 -0.15%; calculating temperature of decarburizing and recrystallization annealing of cold rolled metal subjected to above mentioned treatment according to formula: at content of silicon 1.4 - 2.75% and content of phosphorus 0.05 -0,15%.

EFFECT: possibility for achieving high degree of magnetic properties of metal.

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RU 2 230 801 C2

Authors

Nastich V.P.

Mindlin B.I.

Cheglov A.E.

Gvozdev A.G.

Logunov V.V.

Barybin V.A.

Dates

2004-06-20—Published

2002-08-12—Filed