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Vacuum furnace for silicon smelting and purification of ingot
Characteristics of vacuum furnace for silicon smelting and refining ingot casting:
IGBT intermediate frequency induction power supply is adopted
Quartz or high purity graphite crucible
High purity graphite and high grade hard carbon felt
Servo controlled pull-down directional solidification
The servo control range is 0.03mm-3mm/min
Directional solidification rate: 0.1mm-0.5mm/Min