In the metal production, the main gases applications are:
- the enrichment of combustion air in melting furnaces and cupolas;
- oxygen-fuel burners;
- oxidation and refining of ferrous and non-ferrous metals;
- the degassing of molten aluminium;
- the shaking and chemical homogenization of molten metals;
- the protection from oxidation of molten metals;
- the heat treatment of metals;
- shrink fitting;
- the extrusion of aluminium with injection of liquid nitrogen into the dyes.