The end result of the primary aluminum processing is aluminum ingots (Aluminum Billets or Aluminum Logs) of various standards. From the obtained ingots, in the future, cylindrical billets are made, from which, in turn, for example, aluminum profiles are made.
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Aluminum Billets (LOGS)
The process of Aluminum Billets production consists of 3 technological processes, namely:
- Melting of aluminum ingots.
- Direct casting of the billet.
- Homogenization of the final product.
The smelting process itself is carried out in a continuous cycle furnace, which is a combination of wall and base construction, lined with high-quality refractory materials and mortars. A charge (mixture) is loaded into the smelting furnace, consisting of a combination of aluminum ingots and additional materials and alloys that provide the desired composition of the final product. The melting process takes place at a temperature of about 750°C and after melting it is transferred to the holding chamber, where it undergoes purification, mixing and removal of gases from the alloy.
Further, the mixture prepared in this way enters the casting machine, where it is converted into Aluminum Billets. The resulting billets undergo a homogenization process during the day. At this stage, elimination of micro-inhomogeneities formed earlier as a result of the alloying of the original aluminum and additives makes it possible to obtain a more uniform and stronger structure.