| Abstract Scope |
In the casthouse, from the raw materials to the finished products, aluminium undergoes a series of treatments ranging from furnace charging and alloying, degassing, filtration and casting. One common denominator between all these treatments is that molten metal must be transferred in a way or another. Sometimes the transfer method is obvious but there are many occasions where there are different methods available. Open launders, covered launders, pouring, multi level launders are common open channel methods for transferring molten metal. Gravity siphoning, aspiration siphoning and pressure siphoning are less common but increasingly used in the industry. All have different influences on molten metal temperature, oxidation and cleanliness. The purpose of this paper is to compare different molten metal transfer methods and provide guidelines to select and size the most appropriate method according to the process requirements. |