The degassing and purification technology of molten aluminum alloys by rotary impeller is investigated,aimed at the existent problems in the aspect of the degassing and purification technology of molten aluminum alloys.All parts of the equipment are analyzed and designed.Especially,in the design of spinning rotor,a special pipeline is fixed inside the rotate pole,in order to decrease the temperature inside the rotate pole and prevent the spray flux softening owing to the high temperature and spinning rotor ...