Aluminum Melt Degassing Equipment

he degassing unit is installed in the middle of the aluminum melt casting launder, typically located between the furnace tap hole and the filter box. It introduces a controlled amount of refining gas into the melt through a high-speed rotating graphite rotor. The relative high-speed shearing between the graphite rotor and the aluminum liquid generates fine bubbles that are evenly distributed throughout the melt. Since the partial pressure of hydrogen within the bubbles is zero, and the partial pressure of hydrogen in the aluminum melt is higher, hydrogen in the melt gradually diffuses into the bubbles. Simultaneously, metallic and non-metallic inclusions in the aluminum liquid are adsorbed onto the surface of the bubbles, which then rise to the surface along with the inclusions. This process effectively removes hydrogen and inclusions from the aluminum melt.

Features

Excellent volumetric stability. 

Good resistance to thermal shock. 

Less prone to cracking. 

Excellent resistance to aluminum melt penetration.