1. Crucible induction furnace
1.1 Coating design
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Hearth and coil: hearth and coil linings are designed to ensure safety in the event of metal breakthrough or infiltration. Increasingly, they use modern materials such as cast-in-place or prefabricated refractory concretes.
For the sole, an alumina content of between 60 and 70% is recommended.
For the coil, the recommended material is high-conductivity to promote heat dissipation, with an alumina content of over 80%. This coil lining, with a thickness of between 20 and 30 mm, can advantageously be cast in situ.
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Lid and water-jacket: these two areas do not require extreme safety conditions.
They must, however,...
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Crucible induction furnace
Rotary flame furnace
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