Abstract
Gas fluxing with the addition of chlorine or salt is widely used in the Aluminium industry to remove soluble impurities and nonmetallic inclusions and to produce a dry dross with lower Aluminium content. In particular the removal of alkaline metals Na, Ca and Li is important to achieve the appropriate product quality. The metallurgical performance of this furnace treatment process determines the treatment time required. This can have a significant effect on the furnace cycle time and subsequently overall cast house productivity.
This paper presents the results of an extensive production scale study conducted by Hydro Aluminium Rolled Products into the performance of furnace salt and chlorine fluxing technologies. Emphasis is placed on the following metallurgical aspects, alkaline removal kinetics, reduction rate of non-metallic inclusions and dross formation. Safety aspects and the effect of the treatment process on the furnace cycle time is also reviewed.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
C. Celik, D. Doutre, “Theoretical and Experimental Investigation of Furnace Chlorine Fluxing”, Light Metals1989, 793–800
G. Béland, C. Dupuis, J.P. Martin, “Improving Fluxing of Aluminium Alloys”, Light Metals1995, 1189–1195
E. Williams, R. McCathy, S. Levy, G. Sigworth, “Removal of Alkali Metals from Aluminium”, Light Metals 2000, 785–793
E. Williams, “Alkali Removal and Reduced Chlorine Use During Furnace Fluxing”, Light Metals 2001, 1053–1060
G. Béland, C. Dupuis, G. Riverin, R. Desmeules, L. Rose, “Rotary Flux Injection: Chlorine-Free Technique for Furnace Preparation”, Light Metals1998, 843–847
D. DeYoung, R. Lavesque, “Air Emissions from Rotary Gas and Rotary Salt Injection Furnace Fluxing Processes”, Aluminium Cast House Conference, 2005, 7–16
R.A. Frank, P.J. Flisakowski “In-Furnace Refining Using Pyrotek’s HD-2000 and FIF-50 Rotary Injection Systems”, Light Metals 2004, 779–787
P. LeBrun, A. Mathis “Improved Molten Metal Quality at the Outlet of the Furnace Through the IRMA Treatment”, Light Metals 2004, 789–792
M.B. Taylor, “Which Method to Choose for Alkaline Reduction”, 7th Aluminium Cast House Conference, 2001, 139–150
R. Bridi, M. Smith, “Improvements in Casthouse Processing Using In-Furnace Refining Systems”, 8th Aluminium Cast House Conference, 2003, 1–14
J. Coutenay, “A New Fused Magnesium Chlorine Containing Refining Flux Based on a Ternary System”, Light Metals 2012, 1063–1068
D.C. Chesonis, E.M. Williams, D.H. DeYoung “Meeting Environmental Challenges in the Casthouse”, Light Metals 2009, 653–657
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 TMS (The Minerals, Metals & Materials Society)
About this chapter
Cite this chapter
Badowski, M., Instone, S., Hagen, M. (2014). Metallurgical Performance of Salt and Chlorine Fluxing Technologies in Casting Furnaces. In: Grandfield, J. (eds) Light Metals 2014. Springer, Cham. https://doi.org/10.1007/978-3-319-48144-9_171
Download citation
DOI: https://doi.org/10.1007/978-3-319-48144-9_171
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48590-4
Online ISBN: 978-3-319-48144-9
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)