METHOD FOR PRODUCTION OF SHEETS OF NON-ORIENTED ELECTRICAL STEEL HAVING EXCELLENT MAGNETIC PROPERTIES Russian patent published in 2019 - IPC C21D8/12 C21D1/09 H01F1/16 

Abstract RU 2686424 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to the field of metallurgy. To ensure excellent magnetic properties of sheet from non-oriented electrical steel the method involves use of steel slab containing wt%: C is not more than 0.01, Si is not more than 6, Mn 0.05–3, P is not more than 0.2, Al is not more than 2, N is not more than 0.005, S is not more than 0.01, Ga is not more than 0.0005, Fe and unavoidable impurities – the rest, hot rolling of slab, optionally annealing, pickling, cold rolling, final annealing and application of insulating coating, wherein average heating rate is from 500 to 800 °C during heating during final annealing is not less than 50 °C/s.

EFFECT: disclosed is a method of producing a sheet of non-oriented electrical steel having excellent magnetic properties.

7 cl, 2 tbl, 3 dwg, 2 ex

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RU 2 686 424 C1

Authors

Nakajima Hiroaki

Okubo Tomoyuki

Nakanishi Tadashi

Oda Yoshihiko

Dates

2019-04-25Published

2016-06-27Filed