工程科学学报2011，Vol.33Issue(5)：544-549,6.
Li2O对高铝钢保护渣结晶行为及渣膜传热的影响
Effects of Li2O on the crystallization and heat transfer of mould fluxes for high Al steel
摘要
Abstract
Non-reactive mould fluxes were designed, and the effects of Li2O on the crystallization and heat transfer of the fluxes were investigated by using the single hot thermocouple technique (SHTT) and a heat-flux simulator. The results show that increasing the Li2O content which is less than 2％ can weaken the crystallization property of the fluxes. Whereas, when the Li2O content increases from 2％ to 5％ , the crystallization temperature, critical cooling rate and crystallization rate constant enhance, but the incubation time of the slag system decreases, indicating that Li2O improves the crystallization of the fluxes in this range. It is also found that the maximum heat flux density, average heat flux density and characteristic time of the fluxes reduce with the increase of Li2 O content within the range of 2％ to 5％.关键词
连铸/保护渣/氧化锂/结晶/凝固/传热Key words
continuous casting/ mould fluxes/ lithium oxide/ crystallization/ solidification/ heat transfer分类
矿业与冶金引用本文复制引用
王欢,唐萍,文光华,于雄..Li2O对高铝钢保护渣结晶行为及渣膜传热的影响[J].工程科学学报,2011,33(5):544-549,6.基金项目
国家自然科学基金资助项目(No.50874125) （No.50874125）
