| 摘要 |
FIELD: metallurgy industry.SUBSTANCE: molten steel, doped with silicon, is continuously cast into a preform having a thickness in the range from 50 to 100 mm, and subjected to hot rolling in multiple unidirectional rolling mills for obtaining rolls of a finished hot rolled strip having a thickness ranging from 0.7 to 4.0 mm, followed by continuous annealing of the hot rolled strip, by cold rolling, continuous annealing of the cold rolled strip for the initiation of primary recrystallisation and optionally decarburisation and/or nitriding, applying of a coating on the annealed strip, annealing the strip wound in the roll to initiate secondary recrystallisation, continuous thermal levelling by annealing of the annealed strip and application on the annealed strip of the coating for electrical insulation, and the product thus obtained.EFFECT: improvement of magnetic properties.13 cl, 3 tbl, 3 dwg |
