One of the most important processes of refining aluminum alloys is degassing - the extraction of hydrogen which creates internal defects and porosity.
The degassing is achieved by blowing and saturating the aluminum melt with an inert gas (the most often, argon or chlorine), which comes to the surface reacting with hydrogen.
Consumable tools for degassing are graphite impellers. Plunging into the aluminum melt, they create a channel for supplying inert gas to the depth of the ladle and, with the help of a rotating rotor, distribute gas bubbles throughout its volume.
EuroGraphite products - high-quality graphite impellers are provided with the following characteristics:
- Increased resistance to thermochemical stresses is achieved by using special types of graphite and the technology of vacuum impregnation of parts with antioxidants;
- The design of the impellers and the parameters of their rotation create the necessary structure of gas bubbles that enter into diffusion with hydrogen, turbulence, circulation, depending on the requirements of the technological process.
Products of EuroGraphite
Graphite stators and shafts
✓ Parts are impregnated with antioxidants using vacuum technology throughout the depth;
✓ Overall processing parameters Ф900x3500 mm;
✓ Ideal axiality of the shafts, no runout;
✓ The end element of the connecting unit is greed with the customer, possibly complete with sealing elements.
✓ Selection of the rotor is carried out depending on the specifics of the technological process;
✓ The distribution of gas is carried out throughout the bucket;
✓ Management of the movement of the medium of the melt by adjusting the geometry of the rotor;
✓ Impregnation with antioxidants to increase the service life.
Provides excellent mixing of molten metal with inert gas throughout the volume of the ladle