BOF-LF/VD-CC工艺生产高级船板钢纯净度的研究  

Study on pureness of high level ship plate produced by process of BOF-LF/VD-CC

作　　者：岳峰[1] 包燕平[1] 崔衡[1] 刘丹妹[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083

出　　处：《北京科技大学学报》2007年第S1期1-5,共5页Journal of University of Science and Technology Beijing

摘　　要：高级别船板钢由于具有较高的强度和低温冲击韧性,要求冶炼的钢水有较高的纯净度,同时控制夹杂物的形态.本文采用优化的工艺对国内某厂的高级船板钢的纯净度和夹杂物的行为进行了试验研究.试验结果表明,该工艺生产的钢水具有较高的纯净度,充分钙处理的铸坯上主要是小于10μm的CaO-CaS-Al2O3成分的球形夹杂物.采用合理的工艺措施,BOF-LF/VD-CC流程可以生产出低氧、低硫、高纯净度的钢水,满足高级船板钢的要求.High purity of liquid steel and controlled shape of inclusions were demanded for high strength and low temperature impact ductility of advanced ship plate. The smelting process, purity, and inclusion shape of high-level ship plate of some domestic factories were studied in this paper. The results indicated that the purity of the ship plate steel by the process was high. Inclusions in the casting blanks were mainly globular, whose com-ponent was CaO-CaS-Al2O3 and the sizes were less than 10 μm. High-level ship plate with ultra-low oxygen, ul-tra-low sulfur and high purity can be produced by the process of BOF-LF/VD-CC under proper operating condi-tions.

关 键 词：船板钢 纯净度 夹杂物 

分 类 号：TF762.8[冶金工程—钢铁冶金]