Vacuum Ingot Casting is applied to produce forging ingots of 100-800 tonnes weight. The larger the ingot, the lower the required hydrogen content.
Vacuum ingot casting enables sequence casting of several smaller heats into one very large ingot.
- Liquid steel is degassed in a tank degasser prior to vacuum ingot casting
- The ingot mould sits in a vacuum tank
- A pony ladle with vacuum-tight connection to the vacuum tank acts as a tundish, allowing several ladles to be cast through the pony ladle into the ingot mould