| 摘要 |
A method for producing a killed molten steel for continuous casting, which comprises; A STEP OF PREPARING A MOLTEN STEEL WITH A BLOW-OFF CARBON CONTENT NOT LESS THAN 0.05% IN A CONVERTER, A STEP OF POURING THE MOLTEN STEEL TO A LADLE, AND A STEP OF DEGASSING THE MOLTEN STEEL IN VACUUM DEGASSING VESSEL UNDER A VACUUM WITHIN A RANGE OF FROM 10 TO 300 MMHg, with addition of at least one element selected from the group consisting of Al, Si and Mn, while stepwisely adjusting the vacuum in correspondence to the degree of decarburization of the molten steel.
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