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.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2007年第S1期1-5,共5页
Journal of University of Science and Technology Beijing
关键词
船板钢
纯净度
夹杂物
ship plate steel
purity
inclusion
