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I FURNACES www.aluminiumtoday.com A holding and treatment furnace The StrikoWestofen Group has expanded burnt directly in the rotary drum furnace. its activities in aluminium recycling. The continually monitored furnace To meet the demands of aluminium atmosphere guarantees the a high yield. recycling, the new holding and alloy Recycling material such as scrap, chips and furnaces of the H(R) - T type are now dross is melted in a rotary drum furnace in being added. These units have a holding an environmentally-friendly and energy- capacity of 8000 to 20000kg of efficient way. The liquid aluminum is fed aluminium alloy without a melting shaft. via a launder system to the HR - T The H(R) - T is available with or without 10,000/500 holding/alloy furnace supplied a melting ramp due to its modular design. by StrikoWestofen, to carry out possible This type of system is used for holding analysis corrections and to store the metal. alloys which have been melted in separate In the aforementioned case, the furnace large melting units or rotary drum is equipped as a HR - T type with a melting The new StrikoWestofen HR – T 10,000/500 furnaces and for composition adjustment ramp which allows flexibility of operation. of alloys and controlled casting of liquid Here, the required alloying elements are the plant is tilted by means of the metal in launder systems or continuous preheated with a burner, which is hydraulic unit which is equipped with a casting machines. mounted above the ramp before they go proportional valve. The first melting and casting unit was into solution. It is also possible to melt up Continuous casting of the liquid metal developed for a customer in Turkey in to 500kg of aluminum ingots/hr on the then takes place, in the above mentioned partnership with KMF Maschinenfabriken ramp. Porous plugs are installed in the case on to an ingot casting conveyor. The of Villach, Austria. Other projects are bottom of the holding area and have a system can also be used for the currently in preparation. threefold effect: production of billets and rolling slabs. ᔢ One of the product divisions of KMF - - Good mixing of the alloying elements Maschinenfabriken manufactures rotary with the liquid aluminium; Contact drum furnaces which feature a melting - High temperature stability throughout StrikoWestofen GmbH, Fritz-Kotz-Str. 2-4, procedure with a low salt and oxide the bath area; and 51674, Wiehl-Bomig, Germany content. Low temperature carbonisation - Degassing and cleaning of the alloy Tel +49 22 61 7 09 10 Fax +49 22 61 7 09 11 07 gases released from the melting of Once the metal samples taken from the E-Mail [email protected] contaminated materials are subsequently plant meet the required alloy specification, Web www.strikowestofen.com

May/June 2011 Aluminium International Today