| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a refining method which can maximize the amount of scrap iron to be used, which contains at least one element among Ni, Mo and Cu as an alloy component, without leaving the scrap iron unmelted, when smelting a molten steel containing at least one element among the alloying elements, by using the scrap iron and molten pig iron as iron sources. <P>SOLUTION: The method for smelting the molten steel containing one or more elements among Ni, Mo and Cu as the alloy component comprises the steps of: charging the scrap iron containing one or more elements among Ni, Mo and Cu as the alloy component to a converter 1 for dephosphorization smelting; subsequently charging the molten pig iron 8 into the converter for dephosphorization smelting to dephosphorize the mixture; and then charging the dephosphorized molten pig iron 10 obtained through the dephosphorization treatment into a converter 4 for decarburization smelting to decarburization-refine the molten pig iron 10. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
