- Vacuum Induction Melting (VIM) Furnace
Ceramic shell preheated to about 1000°C is transferred to the vacuum chamber, and the melt prepared in the vacuum chamber inside the alumina crucible is poured into the ceramic shell. Melting and casting in a vacuum has advantages such as increasing the fluidity and fillability of the melt, preventing the oxidation of the melt especially volatile materials such as aluminum and titanium in superalloys, and avoiding the formation of gas cavities happening in air casting. Due to these positive events, excellent mechanical, corrosion , and physical properties are obtained from vacuum cast superalloys.
