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Abstract
The present paper presents practical and theoretical aspects of the solid state heating and heat treatment of aluminium and aluminium alloys. The analysis contains practical results from the development and production activity of BETE AG. The present paper will emphasize the heat transfer through radiation. These technologies become an increasingly importance due to actual environmental restrictive policies. The present paper will focus on the energy reduction during the (pre)heating respectively the cooling phase (see Fig. 1).
Fig. 1
Heat treatment cycle for aluminium castings
Fig. 2
Roller passage kiln with flat flame gas fired infra red burners––concept BELTE––LOI; Pre-heating and solution heat treatment zones
Fig. 3
Theoretic CO2 print for 1 kg Al between 20 and 500 °C
Fig. 4
Theoretic CO2 print for 1 kg Al–3 kg Fe frame support (worst case) between 20 and 500 °C
Fig. 5
Theoretic CO2 print for 1 kg Al–0.333 kg Fe frame support (best case) between 20 and 500 °C
