ELECTRIC RANDOM-ORIENTATION STEEL CAST SLAB AND METHOD OF ITS CASTING Russian patent published in 2012 - IPC B22D11/00 

FIELD: process engineering.

SUBSTANCE: proposed steel comprises the following components in wt %: Si not over 0.1 and not over 7.0 Mn 0.1 or over, Al not over 0.2 and not over 5.0, Cr at least 0.1 and not over 10, C 0.005 or less, P 0.2 or less, S 0.005 or less, N 0.005 or less, O 0.005 or less, Fe and unavoidable impurities making the rest. REM in amount of, at least 0.0005 wt % and not over 0.03 wt % is added to fused steel. The latter is fed from ladle into intermediate device and, then, into casting mould. Slab is produced by continuous casting.

EFFECT: reduced losses in motor armature from random-orientation electric sheet steel.

7 cl, 2 dwg, 2 tbl