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Melting

Contactless and homogeneous melting

Induction heating is gaining in importance in melting furnaces in foundries and in the glass industry. This is based on two factors: a growing demand for quality and requirements that call for melting equipment which is as environmentally friendly as possible. There are two different types of induction heating melting furnaces:

  • crucible induction furnace
  • channel induction furnace

TRUMPF Hüttinger generators are mainly used with systems that use crucible furnaces. Their principle will be explained detailed below.

Levitation melting

A coil envelops a fusion crucible made of a fireproof ceramic ramming mass. The material to be melted is put into the crucible and heated. Alternating current flowing through the coil, generates an electromagnetic field which transfers the electrical energy to the melting stock in a non-contact manner. The field is at its most dense inside the coil.

This procedure allows for homogenous melt and low melting losses due to localized overheating (less material used). Temperature and alloy compositions can be set very precisely.

Contact

Nikolas Hunzinger
Induction Sales
E-mail
Service & contact