100 Indel Avenue

P.O. Box 156

Rancocas, NJ 08073


Ph.: +1(609) 267-8000



Induction Vacuum Ladle

With its patented induction vacuum ladle (IVL) process, Consarc has combined the mobility, strength, and refining flexibility of a steel ladle with the melting power, refining ability, stirring action, and precise temperature control of a vacuum induction furnace. The induction vacuum ladle delivers a host of important benefits — increased productivity; higher product quality; energy savings; reduced maintenance; and process flexibility.

IVL is used for:

  • Degassing
  • Decarburization
  • De-oxidation
  • Refining
  • Holding

The Process
Induction Vacuum Ladle (IVL) is a new technology combining the metallurgical benefits and flexibility of ladle metallurgy with induction heating. The IVL incorporates a special ladle designed to be transparent to the induction field. The result is that ladle metallurgy including VOD can now be accomplished in small batch sizes because the metal temperature can now be controlled by induction heating.

In operation, the IVL ladle is charged with liquid metal from an air melt furnace and is transported to the IVL system. The ladle is lowered into the IVL system and registered inside the coil/shunt cartridge located inside the vacuum chamber.

Once the ladle is inside the vacuum chamber the lid is closed and the vacuum environment established. Now, a variety of ladle treatments can be accomplished including argon bottom bubbling, oxygen blowing, oxide additions, and alloy additions. While these treatments are happening, the metal is temperature stabilized and even superheated through the application of induction power.

Once the melt is degassed, decarburized, deoxidized, or otherwise refined the ladle is removed from the vacuum chamber and moved to the teeming position. The ladle is equipped with a slide gate valve and can be teemed directly into ingot molds or into a continuous caster, atomization system, or other casting apparatus.

Because the IVL involves heating, the system can also be used as a holding system in the event of a problem with some downstream equipment.

Back to Top