| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve deoxidation using metallic aluminum efficiently, while preventing clogging in a porous plug. <P>SOLUTION: In the addition method of the metallic aluminum to a ladle in deoxidation processing, the molten steel 4 refined in a converter 3 is discharged into a ladle 2 in which porous plug 1 containing a plurality of stomata is placed, and when deoxidizing the discharged molten steel 4, the average radius of the stoma is set to 80 to 100μm, and the metallic aluminum 5 for deoxidation is added into the ladle 2 while satisfying the relation: 0<V/α<0.45, wherein V (ton) is the amount of present molten steel discharged into the ladle andα(ton) is the total amount of molten steel discharged from the converter into the ladle. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
