FIELD: metallurgy.
SUBSTANCE: invention relates to method of production of the textured electrical steel sheet. To produce sheet with high density of the magnetic flux steel of produced, it contains in wt %: C - 0.035-0.065, Si - 2.9-4.0, Mn - 0.05-0.20, S - 0.005-0.01, Al - 0.015-0.035, N - 0.004-0.009, Sn - 0.005-0.090, Nb - 0.200-0.800, Fe and inevitable admixture - rest, in the rotary kiln or electrical furnace, secondary affinage of the melted steel, and slab casting, then slab is hot rolled, normalized, cold rolled, decarburizing annealed, MgO coating is applied on the sheet, sheet is high temperature annealed during initial heating to 700-900°C, and then with heating rate 9-17°C/h to 1200°C with holding for 20 h to clean the sheet and to apply insulation coating. During high temperature annealing the steel sheets can be completely nitrated at mode lower temperature.
EFFECT: production of sheet with high magnetic flux density.
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| Title | Year | Author | Number |
|---|---|---|---|
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