METHOD TO PRODUCE TEXTURED SHEET OF ELECTRIC STEEL Russian patent published in 2015 - IPC C21D8/12 C22C38/00 H01F1/16 C21D9/46 

FIELD: metallurgy.

SUBSTANCE: electric steel sheet roll after cold rolling is exposed to primary recrystallisation annealing, an annealing separator is applied on it, and final annealing is performed. Heating of the roll for the primary recrystallisation annealing is carried out with a speed of at least 80°C/s from 500°C to 700°C in the process of heating, and during heating for final annealing, exposure is carried out from 2 to 100 hours at a temperature from 700°C to 1000°C. Final annealing of the roll is carried out in an annealing furnace, at the same time a heat insulation material is laid onto the upper surface of the stand supporting the roll, concentrically from the external periphery of the stand supporting the roll, and in the area of at least 20% of the radius of the stand supporting the roll.

EFFECT: elimination of sheet shape defects produced from final annealing and an increased yield of finished goods.

3 cl, 5 dwg, 1 tbl, 1 ex