Desulphurization Properties for Molten Iron of Low Oxygen Content using CaO-MgO Refractories

概要

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CaO-MgO refractories have been used as the main refractory for converters in steel making. Recently MgO-C refractories are increasingly being used instead of CaO-MgO refractories due to their durability. While the improvement of properties of CaO-MgO refractories, especially durability, is still attempted and reported, very few studies on the refining properties of CaO-MgO have been reported except for molten iron with high oxygen content which has superior desulphurization properties over CaO. When considering applications to the ladle furnace for clean steel making, it is important to study the refining properties of CaO-MgO refectories in molten iron with low oxygen content. Experiments were conducted to study the refining properties of CaO-MgO in molten iron with low oxygen content, and the results showed that CaO-MgO refractories have outstanding desulphurization and repetition properties when Al is added to molten iron with low oxygen content.
Japan Foundry Engineering Societyの論文