RECARBURIZING AND DESULFURISING METHOD OF FURNACE

摘要

The method simultaneously proceeds with coal addition and desulfurization of molten steel having below 100 ppm of sulfur content. The method comprises: A) pretreating molten pig iron in which the sulfur content is below 100 ppm; B) tapping molten pig iron to a ladle; C) bubbling molten steel in a ladle; D) degasing in case of need; E) casting. The method is useful as manufacturing molten steel having low sulfur content below 100 or 50 ppm.