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Quartz ceramics crucible(for polysilicon industry)
Quartz ceramics crucible is used as a container of loading polycrystalline silicon materials during the production of solar energy polycrystalline silicon ingot casting , it will be melted under 1550°C, crystallized and produced polycrystalline silicon ingot casting ,it is the key consuming part during the producing of polycrystalline silicon ingot casting , adopting traditional quartz ceramics slip casting forming technology . And using good quality melting quartz as raw materials , the product has the characteristics of high purity, good heat stability , good antiseptic function , compressive strength and bending strength are big, precision of geometric size is high , and service lift is long ,ect.
| Standards(square) | Size |
| 878 | 878*878*420mm |
| 878 | 878*878*480mm |
| 883 | 883*883*420mm |
| 883 | 883*883*480mm |
| Technical function index | ||
| Item | Unit | Data |
| The most heat-resisting temperature | °C | ≤1650 |
| Volume density | g/cm³ | ≥1.96 |
| Modulus of rupture | Mpa | 21.96 |
| Thermal expansion coefficient | 10-6°C | ≤0.91 |
| Pyroconductivity | W/m •°C | 0.86 |
| Specific heat volume | J/g •°C | 1.0 |
| Crystallinity | vol% | ≤1% |
| Moh's hardness | 6 | |
| Typical impurity content(PPM) | ||||||||||||
| Al | B | Ca | Cu | Fe | K | Li | Mg | Mn | Na | Ni | P | Ti |
| 221 | 0.1 | 22 | 0.1 | 12 | 14 | 0.9 | 7 | 0.3 | 22 | 0.2 | 0.5 | 5 |
Quartz ceramics crucible(for polysilicon industry,large size)