Patent ID: 9087963
Filing Date: 2015-07-21
Classification: F27D,H01L

Abstract:
1. An apparatus for manufacturing a thermoelectric conversion element, comprising: a crucible configured to store a molten thermoelectric conversion material; a heating apparatus arranged on an outer perimeter of the crucible, the heating apparatus being configured to heat the thermoelectric conversion material in the crucible to a temperature equal to or higher than a melting temperature of the thermoelectric conversion material; a preheating apparatus arranged above the crucible; a passage as part of the preheating apparatus, the passage configured to communicate between inside part of the crucible and an upper side of the heating apparatus; a tube made out of heat-resistant insulating material and configured to be heated by the preheating apparatus to a temperature lower than the melting temperature, a first end of the tube inserted into the crucible via the passage; and a decompression apparatus connected to the second end of the tube.