Study on the Production of Mn-Si Ferroalloys in Teeming Ladle

The steelmaking practice shows that when using the Mn-Si ferroalloys with a density similar to that of liquid steel as additive instead of part of the ferrosilicon and the high carbon ferromanganese, the adding alloy particles can be trapped in the liquid steel and the interacting time will last longer. As a result, the silicon and manganese yield is raised from 68.38% to 74.78% and from 86.7% to 91.2% respectively for the plain carbon steels, while the silicon and manganese yield raised from 82.86% to 88.25% and from 90.05% to 92.50% respectively for the alloy steel 20MnSi.