The newly developed XSR high-performance rotor is far more effective than conventional rotors at cleaning and degassing molten aluminium. The reduction in the treatment time to obtain the same or even better levels of metal cleanliness brings about enhanced productivity for the FDU degassing equipment, and reduced temperature loss in the treatment vessel. The new XSR design can give much lower levels of both hydrogen and oxides in the molten metal compared to conventional rotors. Alternatively, the service life of the graphite shaft and rotor can be increased whilst maintaining metal quality by reducing the rotor speed. The XSR rotor is another demonstration of the development by FOSECO in degassing technology.
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