Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-847 - C7-854
DOI http://dx.doi.org/10.1051/jp4:19937133
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-847-C7-854

DOI: 10.1051/jp4:19937133

Complex processing of molten secondary aluminium

P. MOLDOVAN, I. CHIRA and M. PANA

University Politechnica Bucharest, Faculty of Materials Science and Engineering, Spl. Independentei 313, Bucharest 77206, Rumania


Abstract
The paper describes a new in-line technology for complex treatment of secondary aluminium and aluminium alloys which combines metal filtering, alkali removal and degassing operations into a single unit. Process hydrogen removal efficiencies are expressed as a percentage of original hydrogen content. The relationship between melt velocity and filtration efficiency, and height of filter and filtration efficiency were examined. The CTT system showed superior chlorine utilization efficiency compared to other comercialized in-line technologies. The CTT process offers superior secondary metal treatment performance in terms of inclusion removal and comparable hydrogen and alkali removal efficiencies.



© EDP Sciences 1993