Low sulfur content in molten cast iron melted by induction melting furnace

When smelting cast iron with an induction melting furnace, due to the large amount of scrap in the furnace charge and less pig iron ingots, the sulfur content in the ingredients is inherently low, and there is no contact with the coke during the smelting process, and there is no process of absorbing sulfur from the coke. In the molten iron obtained by adding sulfur and smelting, the sulfur content is generally below 0.06%. For low-sulfur molten iron, it is a well-known fact that the effect of inoculation treatment is poor.

Therefore, when smelting in an induction melting furnace, special attention should be paid to the sulfur content in cast iron, and it must be kept above 0.06%. If there is no sulfur component in the ingredients, generally an appropriate amount of ferrous sulfide can be added to increase sulfur.