摘要
采用低氟型CaO＋A l2O3复合基熔剂替代传统CaO-CaF2系脱硫剂,利用RH投入法进行钢液深脱硫工业试验。20个试验炉次的结果表明,RH平均脱硫率ηS可达到53.44%,脱硫后钢液中[S]≤24×10^-6。分析了钢包顶渣的改性处理以及RH脱硫终渣组成对RH脱硫的影响。在此基础上,确定了RH脱硫剂的优化组成为：CaO＋BaO（60%-65%）？A l2O3（20%-25%）-MgO（5%-7%）？CaF2（〈5%）。
The industrial experiments on deep desulphurization by using （CaO ＋ Al2O3 ） complex based fluxes instead of conventional CaO - CaF2 fluxes were carried out through flux addition in RH process. The results show that the average De - S rate of 53.44% has been achieved and the sulphur content in molten steel after RH refining is cut down to less than 24 × 10 ^-6. The influence of modification treatment of the ladle top slag and final slag composition at the end of RH treatment on De - S is analyzed. The optimum composition of De - S agent is determined to be CaO ＋ BaO（60% - 65% ） - Al2O3 （20% -25% ） -MgO（5% -7%） -CaF2（〈5%）.
出处
《钢铁钒钛》
CAS
北大核心
2009年第2期46-49,共4页
Iron Steel Vanadium Titanium
关键词
RH
钢包渣改性
脱硫剂
CaO+Al2O3
RH
modification treatment of ladle top slag
desulphurizing agent
CaO ＋ Al2O3
