日本ＮＫＫ福山厂的 3座转炉通过采用无渣出钢技术 ,使其冶炼周期缩短了 7ｍｉｎ。在这种工艺中 ,操作人员首先在脱硅站的铁水包中将铁水中的硅、磷去除 ,在铁水装入转炉前 ,铁水中的磷含量已低于客户要求的规格。通常 ,脱磷占了转炉内较多的冶炼和精炼时间 ,所以铁水脱磷后 , Japan’s NKK Fukuyama plant’s three converters through the use of non-slag tapping technology to shorten the smelting cycle 7min. In this process, the operator first removes the silicon and phosphorous from the molten iron in the desilvering station’s ladle. Before the molten iron is loaded into the converter, the phosphorus content in the molten iron is below the specifications required by the customer. Usually, dephosphorization accounted for more smelting and refining time in the converter, so dephosphorization of hot metal,