Removal of MnS inclusions in molten steel using electropulsing

Zhang, X. F.; Lu, W. J. and Qin, R. S. (2013). Removal of MnS inclusions in molten steel using electropulsing. Scripta Materialia, 69(6) pp. 453–456.



A method using electropulsing to separate inclusions from molten steel is developed, based on the differences in electrical properties between the inclusions and liquid metal. The inclusions have different electrical resistivity from that of the liquid steel and hence are expelled to the surface of the metal by electropulsing. In comparison with the as-solidified untreated steel, the size of the inclusion is significantly larger at the surface of the molten steel due to the enhanced agglomeration. Moreover, the technique is efficient in eliminating particles smaller than 20 μm.

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