Smelting control of ductile iron - desulfurization

- Nov 20, 2019-

The sulphur content of the original iron solution determines the amount of spheroidizing agent added. The higher the sulphur content in the original molten iron, the more the spheroidizing agent is added, otherwise the spheroidized casting cannot be obtained. The S content in the original molten iron before the spheroidization treatment is controlled to be 0.02% or less. When the sulphur content of the original molten iron is high before the spheroidizing treatment, it is necessary to carry out desulfurization treatment.


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