Purge gas treatment in ladles
Getting rid of impurities
PROCESS DESCRIPTION
Many aluminum alloys require melt pool cleaning in order to eliminate unwanted accompanying elements and to homogenise and degas. Holding furnaces or specially designed rinsing stations for ladles or casting furnaces are used for this purpose. At the rinsing stations, purge gas is injected into the melt from under the bath using lances or impeller systems in order to clean the liquid alloy and to degas hydrogen.