Combined type heat-insulating baffle for increasing monocrystal solidification temperature gradient
A technology of heat insulation baffle and solidification temperature, applied in the direction of single crystal growth, self-solidification method, crystal growth, etc., can solve the problems of time-consuming molybdenum sheet processing, interruption of production process, influence of heat insulation effect, etc. Simple processing and low cost of use
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Embodiment 1
[0016] In the ZGD-1 vacuum induction directional solidification furnace, a composite heat insulation baffle is used. The inner and outer diameters of the annular body of the composite heat insulation baffle are Φ200mm and Φ250mm, the total height of the annular body is 150mm, and the outer diameter of the upper graphite ring is is 100mm, and the inner diameter of the upper graphite ring is 50mm. After testing, the temperature gradient increased from the usual 40-60°C / cm to 60-80°C / cm.
Embodiment 2
[0018] In the DSP II vacuum induction directional solidification furnace, a composite heat insulation baffle is used. The inner and outer diameters of the annular body of the composite heat insulation baffle are Φ220mm and Φ270mm, the total height of the annular body is 150mm, and the outer diameter of the upper graphite ring is is 100mm, and the inner diameter of the upper graphite ring is 50mm. After testing, the temperature gradient changed from the usual 30-60°C / cm to 50-70°C / cm.
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