摘要
通过现有热力学数据计算证明，一般的工作真空度67Pa对含碳量大于0．2％、铝含量大于0.025％的钢种进行VD精炼时，钢中的溶解氧含量受碳含量的控制．由于钢中硫含量与溶解氧含量存在确定关系，硫含量亦受碳含量和真空度的控制．计算也证明，提高真空度和搅拌速度可以降低溶解氧含量，为脱硫提供了热力学和动力学条件，有利于真空处理过程的脱硫反应．计算结果得到生产实际结果证实．
According to the calculation with current thermodynanics data， the oxygen content iscontrolled by the carbon content when the refining process is carried on in a condition of thevacuum degree being about 67 Pa and the carbon content being about 0.2% as well as aluminumcontent about being large than 0.025%.Because the sulfur content has a fixed relationship with soluble oxygen， the sulfur content is also controlled by vacuum degree and the carbon content. It isproved by the calculation that increasing vacuum degree is benefit for the increasing of stirringpower and the decreasing of soluble oxygen content，so the conditions of thermodynamics and dynamics for desulphurization are provided.The results calculated are testified by the results of commercialrefining of steel.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1999年第1期17-19,共3页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金!59374170
关键词
脱硫
精炼
真空处理
钢液
VD处理
炼钢
desulphurization
secondary steelmaking
vacuum treatment
