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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Authors
Dates
2019-04-25—Published
2016-06-27—Filed