木条与高温铝液作用对铝液中形成氢和氧化铝夹杂的影响研究  

Study on the effect of interactions between sticks and high-temperature aluminum liquid on formation of hydrogen and alumina inclusions in liquid aluminum

作　　者：赵风君[1] 贺永东[1] 刘向阳[2] 李志军[1] 何茂刚[2] Zhao Fengjun He Yongdong Liu Xiangyang Li Zhijun He Maogang(School of Physics and Technology, Xinjiang University, Urumqi 830046, China School of Energy and Power Engineering, Xi＇an Jiaotong University, Xi＇an 710049, China)

机构地区：[1]新疆大学物理科学与技术学院,新疆乌鲁木齐830046 [2]西安交通大学能源动力与工程学院,陕西西安710049

出　　处：《轻金属》2017年第1期31-37,共7页Light Metals

基　　金：新疆维吾尔自治区科技厅高技术发展计划项目(201515106)资助;国家自然科学基金项目(51661031;11264037)资助

摘　　要：本文以工业铝电解生产采用木条熄灭阳极效应过程为研究对象,采用外热式电阻炉-高温铝液模拟木条熄灭阳极效应期间铝液与木条的作用过程,采用化学分析、热分析、氢分析、OM分析、SEM分析、EDS分析方法,研究木条在高温铝液中裂解导致铝液吸氢、增杂的过程,从微观机制上揭示熄效应处理对铝液中氢和氧化铝夹杂形成过程的影响机理。试验结果表明,采用木条熄灭阳极效应使铝液氢和氧化铝夹杂含量增加。In this paper, the process of extinction anode effect by sticks during aluminum reduction was researched, and interaction process between sticks and liquid aluminum was simulated in high - temperature liquid aluminum in external - heating resistance furnace. Hydrogen absorption and increased impurity cased by sticks pyrolysis in liquid aluminum were studied based on the chemical analysis, thermal analysis, hydrogen analysis, OM analysis, SEM analysis and EDS analysis to reveal the influence of extinction anode effect on the formation of hydrogen and alumina inclusions in liquid aluminum at the view of microstructure. The experimental results showed that the extinction anode effect made the content of hydrogen and alumina inclusions increase in liquid aluminum.

关 键 词：熄灭阳极效应 木条 热分析 氢 氧化铝夹杂 

分 类 号：TF821[冶金工程—有色金属冶金]