| 摘要 |
The conveyor, the mixing tool or stirring mechanism is heated with the aid of an electromagnetic field which generates eddy currents. The container is surrounded by induction coils in a manner known per se. Advantageously, the walls of the container are composed of a thin-walled standard steel and the conveyor, the mixing tool or the stirring mechanism of a magnetic material. The walls of the container may also be composed of a non-magnetic material, for example ceramic material, refractory material, a non-magnetic steel alloy or a non-ferrous metal, and the conveyor, the mixing tools or the stirring mechanism of a magnetic material. <IMAGE>
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