One special application of graphite products is the graphite rotor. What is a graphite rotor? Liquid aluminum alloy purification process is the main means to improve the comprehensive performance of aluminum alloy. In the purification process, the method of mixing purification gas and solvent and using the graphite rotor to rotate and blow to the aluminum melt for purification treatment is the most advanced treatment method in the world. What are the characteristics of graphite rotors compared to other rotors?

1.  The use cycle is up to 2 months in aluminum processing industries such as aluminum sheet and foil casting, aluminum alloy wheels, etc.
   
2.  Rotary refining de-aerator is divided into movable and fixed types, which are suitable for different operating environments.
   
3.  The de-gassing rate is more than 50%, which shortens the smelting time and reduces the production cost.
   
4.  Suitable for purifying aluminum liquid in crucible furnace, pouring ladle and still box.
   
5. The surface is treated with oxidation resistance, and the service life is about 5 times that of ordinary products, which is widely used in aluminum alloy casting industry.
   

　　Graphite rotor rotating nozzle is made of high purity graphite, and the structure of the nozzle, besides considering that it should break up the air bubbles, also uses the centrifugal force generated by stirring the aluminum alloy melt to make the melt enter the nozzle and mix evenly with the gas ejected horizontally, forming a gas/liquid flow to eject, increasing the contact area and contact time between the air bubbles and the aluminum alloy liquid, and improving the degassing and purification effect.

　　The rotational speed of graphite rotor can be steplessly adjusted by frequency converter speed control, up to. Graphite rotor specifications are, impeller specifications are, high purity antioxidant graphite rotor with high strength, high temperature resistance, aluminum flow corrosion resistance and other characteristics. In the purification and degassing process, the surface of aluminum alloy liquid in the box is protected by passing nitrogen to cover it, so that the part of graphite rotor exposed to aluminum alloy liquid is in inert gas to prevent the rotor from high temperature oxidation and prolong the service life of the rotor.

　　The shape of the impeller is streamlined, which can reduce the resistance when rotating, and the frictional scouring force between the impeller and the aluminum alloy liquid is relatively small. This makes the de-gassing rate above 50%, shortens the smelting time and reduces the production cost. The surface is treated with special anti-oxidation treatment, and the service life is about 5 times that of ordinary products, which is widely used in aluminum alloy casting industry.