METHOD FOR PRODUCING A SHEET OF ELECTROTECHNICAL STEEL WITH ORIENTED GRAIN STRUCTURE Russian patent published in 2022 - IPC C21D8/12 C23C22/00 H01F1/147 

Abstract RU 2767365 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, namely, to manufacture of a sheet of electrotechnical steel with an oriented grain structure. The method for manufacturing a sheet of electrotechnical steel with an oriented grain structure includes hot rolling of a slab for producing a hot-rolled sheet, annealing of the hot-rolled sheet, cold rolling of the annealed hot-rolled sheet, decarbonising annealing of the cold-rolled sheet, applying an annealing separator containing aluminium oxide as the main component and MgO in an amount from 28 to 50 wt.%, and finishing annealing of the decarbonised annealed sheet. The applied amount of the annealing separator is 6.0 to 14.0 g/m2 per surface of the decarbonised annealed sheet.

EFFECT: losses in the sheet of electrotechnical steel are reduced.

3 cl, 4 dwg, 3 tbl, 2 ex

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RU 2 767 365 C1

Authors

Takatani Shinsuke

Okumura Shunsuke

Nagano Shohji

Dates

2022-03-17Published

2020-01-16Filed