Induction furnace and method for dental replacement part heat treatment

An induction furnace for carrying out a heat treatment of a dental replacement part, comprising;

• an induction coil that is formed of a hollow metal tube through which a cooling liquid flows;
• a radiant heater;
• a thermal insulation layer;
• a furnace chamber;
• a furnace door, and
• a cooling system adapted to be controlled by a computer, said cooling system having a pump, the cooling liquid that is moved in a cooling circuit by the pump, a fan, and a radiator that is cooled with cool air by the fan to cool the cooling liquid, wherein the cooling system is configured, by the computer, to cool the induction coil, and thus the radiant heater disposed adjacent to the induction coil,
• wherein the induction coil is operated with alternating current and the radiant heater is heated by an alternating magnetic field of the induction coil,
• wherein the thermal insulation layer is disposed between the radiant heater and the induction coil, wherein the thermal insulation layer is configured to have a thickness that both prevents the induction coil from being overheated and allows cooling of the radiant heater through cooling of the induction coil, thus decreasing an internal temperature of the furnace chamber,
• wherein the radiant heater is made of a conductive non-oxide ceramic or molybdenum disilicide,
• wherein the cooling liquid is moved in the cooling circuit by the pump,
• wherein the induction furnace comprises a cooling control of the cooling system,
• wherein a temperature sensor is disposed within the furnace chamber, which acquires an internal temperature of the furnace chamber, and
• wherein the cooling control controls the fan and the pump, to regulate a temperature of the induction coil and thus the internal temperature within the furnace chamber.