Description:

For the removal of hydrogen in molten aluminum , silicon nitride tubes are used to put into nitrogen or argon. Silicon nitride rotor are used in the whole process of molten aluminum to stir and disperse gas. Compared with graphite rotor, the service life of silicon nitride rotor is longer because no oxygen corrosion when heating up. With the characteristic of high density and high strength , silicon nitride rotor makes the running stable when high speed rotating. With high thermal shock resistance performance, it can be inserted in and pulled out from molten aluminum repeatedly in batch operation.

Technical paramater:

Material: silicon nitride 

color: gray

si3n4: 92%

Density: ≥3.1g/cm3 

Compress Strength: ≥1500MPa 

Thermal conductivity: 16-22W/mk 

Hardness: ≥92 

Working temperature: 1400Degree Centrigrade 

Feature:

1. High strength & good compactness

2. Low thermal expansion coefficient

3. Excellent thermal shock resistance

4. No wetting by molten aluminium and other non-ferrous molten metal

5. Good corrosion resistance