Ti和Si对铁液黏度和凝固性质的影响  

Effect of Ti and Si on the viscosity and solidification properties of molten iron

作　　者：张建良[1] 韦勐方[1] 国宏伟[1] 毛瑞[1] 胡正文[1] 赵永彬[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》2013年第8期994-999,共6页Journal of University of Science and Technology Beijing

基　　金：国家重点基础研究发展计划资助项目(2012CB720401);国家自然科学基金委员会与宝钢集团有限公司联合资助项目(51134008)

摘　　要：通过振荡杯高温熔体黏度仪对含Ti铁液的黏度进行测定,研究在冷却过程中Ti、Si对铁液黏度、黏流活化能、凝固温度以及凝固速度的影响.发现含Ti铁液在发生凝固以前,其黏度差别不大,黏流活化能为37.07～44.03 kJ.mol 1.Ti含量对铁液的凝固温度和凝固速度影响较大,Ti含量高的铁液开始凝固温度较高,而且凝固速度更快.硅含量低是钒钛铁液凝固温度低的主要原因.The viscosity of molten iron containing titanium was measured with a oscillating cup viscometer at elevated temperatures. The effects of titanium and silicon on the viscosity, viscous activation energy, solidification temperature, and solidification rate of molten iron were studied during the cooling process. It is found that there is little difference in viscosity among molten irons containing different contents of titanium above the solidification temperature, and their viscous activation energies change in the range of 37.07 kJ.mo1-1 to 44.03 kJ.mo1-1. There is great influence upon the solidification temperature and solidification rate by adding titanium into molten iron, and the higher the titanium content, the higher the solidification temperature and solidification rate. Low silicon content is the main reason for low solidification temperature of molten iron containing V and Ti.

关 键 词：高炉 铁液 黏度 活化能 凝固 钛 硅 

分 类 号：TF065.7[冶金工程—冶金物理化学]