What are the characteristics of graphite rotors compared to other rotors?
1. The service life is up to 2 months in aluminum plate, aluminum foil casting, aluminum alloy wheel hub and other aluminum processing industries.
2. Rotary refining degasser is divided into movable and fixed types, which are suitable for different operating environments.
3. The degassing rate is above 50%, which shortens the smelting time and reduces the production cost.
4. Suitable for purifying aluminum liquid in crucible furnaces, pouring ladles and static boxes.
5. The surface has been treated with anti-oxidation, and its service life is about 5 times that of ordinary products. It is widely used in the aluminum alloy casting industry.
There is a special application in graphite products, which is graphite rotors. What is a graphite rotor? The liquid aluminum alloy purification treatment process is the main means to improve the comprehensive performance of aluminum alloy. In the purification treatment process, the method of mixing purification gas and solvent and using the rotation of the graphite rotor to blow the aluminum melt for purification treatment is currently an internationally advanced treatment method.
The graphite rotor rotating nozzle is made of high-purity graphite. In addition to breaking up the bubbles, the structure of the nozzle also uses the centrifugal force generated by stirring the aluminum alloy melt to cause the melt to enter the nozzle and evenly mix with the horizontally ejected gas to form a gas/liquid flow ejection, which increases the contact area and contact time between the bubbles and the aluminum alloy liquid, and improves the degassing and purification effect.
The rotation speed of the graphite rotor can be adjusted steplessly through the frequency converter speed control, and the maximum speed can be reached. The high-purity anti-oxidation graphite rotor has the characteristics of high strength, high temperature resistance, and aluminum flow corrosion resistance. During the purification and degassing process, the surface of the aluminum alloy liquid in the box is covered with nitrogen for protection, so that the part of the graphite rotor exposed to the aluminum alloy liquid is in inert gas, preventing high-temperature oxidation of the rotor and extending the service life of the rotor.
The shape of the impeller is streamlined, which can reduce the resistance during rotation, and the friction and scouring force generated between the impeller and the aluminum alloy liquid is also relatively small. As a result, the degassing rate is above 50%, the smelting time is shortened, and the production cost is reduced. The surface has undergone special anti-oxidation treatment, and its service life is about 5 times that of ordinary products. It is widely used in the aluminum alloy casting industry.