The raw material, mainly scrap, production scrap losses and ingots are introduced in to the melting furnace. When the aluminium is heated in the furnace it is transforms into aluminium liquid. It is then transfered in to another oven to refine, prepare the alloy and adjust the temperature. When it is done, the liquid aluminium is poured in a moulds to be cast in to slabs. The moulds cast slabs 5 metres long as you can see in the picture.