Induction Systems for Vacuum and Controlled Atmospheres

The creation and casting of super alloys and other advanced and reactive metals requires sophisticated induction systems for vacuum and controlled atmosphere melting and remelting systems. The use of vacuum technology in precision casting provides a number of key benefits in terms of quality and consistency in the castings produced. The primary factor is eliminating the environment that would promote the reaction of the liquid metal with oxygen/nitrogen, creating inclusions in the casting. This is most beneficial in the casting of critical components such as nickel-based alloys in turbine components. Processing under vacuum significantly reduces porosity created by gas entrainment within the casting. Moreover, vacuum casting provides the ability to directly influence the metal solidification through control of the cooling mechanism.