细晶铝锭电解过程添加TiO_2对电解质性质的影响  

Effect of addition of TiO_2 on properties of electrolyte in the process of Grain-refining aluminium ingots electrolyze

作　　者：樊彬彬[1] 左秀荣[1] 

机构地区：[1]郑州大学物理工程学院材料物理教育部重点实验室,河南郑州450052

出　　处：《轻金属》2007年第2期35-37,共3页Light Metals

摘　　要：本研究在铝电解质Na3AlF6-MgF2-AlF3-CaF2-Al2O3中添加TiO2,通过差热分析和XRD分析,发现添加TiO2以后对电解质的物理化学性质影响很小。当TiO2含量小于0.5%时,电解质的初晶温度并没有明显的升高;电解质失重在6%以内;密度变化不大;电解质主要由Ca3Al10O18、Na5AL3F14、Na2MgAlF7等晶相组成。When TiO2 is added into the Na3AlF6 - MgF2 - AlF3 - CaF2 - Al2O3, TiO2 has a tittle effect on the physical and chemical properties of electrolyte by DSC and XRD analysis. The liquidus temperature of electrolyte doasn＇ t have an obvious change when the content of TiO2 is less than 0.5 96 ; The weightlesaness of electrolyte is smaller than 6% when the content of TiO2 is less than 0.5% ;The TiO2 has a little effect on the density of electrolyte when the content of TiO2 is less than 0.5 %, but the variation is very small ;The electrolyte consist＇ s of Ca3Al10O18. NasAl3F14. Na2MgAlF7 and so on .

关 键 词：细晶铝锭 毛解质 TIO2 

分 类 号：TF821[冶金工程—有色金属冶金]