| 摘要 |
<p>The refining of chromium-containing molten steel by the treatments of decarburization, reduction, and desulfurization is improved in terms of consumption of argon gas used for blowing molten steel, amount of refractories of the AOD furnace, and CaO and CaF2, etc. by a process which comprises adding to the slag existing after completion of the decarburization, metallic Al as a reducing agent and CaO as a slag-forming agent respectively in amounts necessary for the slag, after completion of the subsequent reduction, to acquire a SiO2 content of not more than 10% and a CaO/Al2O3 ratio in the range of 0.8 to 2.0 thereby enabling the treatments of reduction and desulfurization to proceed simultaneously.</p> |
