Specification :

I, Usage:
This equipment is vertical with such functions as high vacuum, inflation and high-temperature melting directional solidification and so on. It is the preferred furnace for melting silicon and making silicon ingots. Meanwhile, after added with the plasma heat source, it can meet part of the purification requirements
II, Characteristics:
1. Short production cycle of each furnace : Heating and melting can be completed within 16 hours, crystallization process 25 hours, tempering 3 hours, and cooling 12 hours. The total time is within 56 hours.
2. low maintenance costs.
3. Easy replacement of thermal field, the thermal field with up and down split is easy to replace.
4. Safer due to a variety of protective measures, so far it has been found that no security incidents caused by silicon leakage happened after user’ s operation.
5. High degree of automation, using PLC + HMI ( human machine interface) to achieve that one set to complete the whole process.
6, Patented structure makes larger temperature gradient from top to bottom.
It makes larger temperature difference from top to bottom in the thermal field to use patented ingot structure. Meanwhile ingot casting has purifying ability, even if the raw material is 4N, it can produce more than 5N polysilicon.