Mathematical modeling and computer simulation of molten aluminum cleansing by the rotating impeller degasser Part II. Removal of hydrogen gas and solid particles

Rotary degassing is widely used in the foundry industry for removing hydrogen gas and solid impurities from molten aluminum alloys. In this method, a specially designed impeller rotates inside the melt and gas is purged into the molten alloy through holes located at the bottom of the impeller. The purged gas forms bubbles that rise to the melt's surface. While rising, the bubbles pick up hydrogen gas and solid impurities from the melt and carry …