|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||Solidification Processing of Light Metals and Alloys: An MPMD Symposium in Honor of David StJohn
||D-37: Analysis of the High Purity Aluminum Purification Process Using Zone-refining Technique
||Heli Wan, Baoqiang Xu, Jinyang Zhao, Bin Yang, Yongnian Dai, Li Liang
|On-Site Speaker (Planned)
The article presents the results of an experimental study of the effect of impurity transport in a zone refining system. In order to further improve the purity of aluminum, therefore, a sample with the purity (99.99%) aluminum material was used for zone-refining, and evaluated its purity by glow discharge mass spectrometry (GDMS). In addition, the distribution of impurities after approximately 5 passes of zone refining was analyzed. In experiments, when the zone speed was increased from 5 to 30 mm/min at a zone width of 40mm, and the zone-refining were controlled 5 to 20 passes. The experiment result showed that impurities content was significantly affected by the difference in the number of zone passes. In addition, with the decrease of the moving speed of the melting zone, the content of impurities in the product was also gradually decreased by GDMS analysis.