TY - JOUR
AU - Friesen , , K.
AB -  Molten salt fluxes play an important role in the processing of molten aluminum. Most salt fluxes are based on either the KCl-NaCl or the KCI-MgCl 2 binary systems. Additives include other chlorides, fluorides, nitrates, carbonates or sulphates. They are used either in a passive role to cover the metal from oxidation or sometimes in an active role to remove inclusions, alkali metals and magnesium. Salt fluxes can also be used to imporve metal recovery from drosses as well as during melting of recycled scrap. The physical and chemical properties of these various molten salts are reviewed and analysed in terms of applications to the aluminum industry. combustion of hydrogen containing fuels. Another group of cover fluxes are based on MgCl 2 -KCl which forms a low melting eutectic at 424°C. These cover fluxes have high fluidity and form a thin layer on the melt surface. Since, MgCl 2 is expensive it is primarily used when treating aluminum alloys with very low limits of Na and Ca and with more than 2 wt% Mg. NaF and KF based salts decrease the interfacial tension between the flux and the metal and between the flux and oxides l\\l. The reason is 
TI - Properties of Fluxes used in Molten Aluminium Processing
JF - High Temperature Materials and Processes
DO - 10.1515/HTMP.2001.20.3-4.303
DA - 2001-10-01
UR - https://www.deepdyve.com/lp/de-gruyter/properties-of-fluxes-used-in-molten-aluminium-processing-WUO4F9n4qP
SP - 303
VL - 20
IS - 
DP - DeepDyve
ER -