The heating element generally adopts a birdcage structure, a tungsten heating element or a tungsten wire mesh heating element, which is beneficial to provide a uniform and stable thermal field.
Application temperature ≤2800℃.
As a heat source in the sapphire crystal growth furnace, the tungsten wire heating element assembly plays a decisive role in forming turbulent flow in the tungsten crucible and generating a radial temperature gradient. Therefore, a high-purity, high-density, well-made and reasonably designed tungsten wire heating element assembly is of great significance to the quality control of sapphire crystals, energy saving and service life.