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STA quartz singing bowl for meditation and sound therapy
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Product Details
| Materials | quartz | Applications | for semiconductor/ industry/laboratory |
Product Description
opaque quartz crucible/clear quartz crucible/ fused quartz crucible
1.Product description:
Quartz crucible of arc melting used for semiconductor industry is the essential basic material for pulling monocrystalline silicon and developing L S I circuit. It has the advantages of high purity, high temperature resistance with big size, good thermal insulation, economization on energy, quality stability etc.
We also can produce various specifications oftransparent and translucent crucibles. Crucibles can be produced according to the standard or produced on customer's required specification and shap.
2.Technical data:
Content | Density | CompressiveStrength | Max servicetemp |
SiO2≥99.9% | 2.20-2.30 g/cm3 | 1000 Mpa | 1450°C
|
3.The types of quartz crucible:
1)opaque quartz crucible
Density 20°C kg.m-3(x103) | 2.2 |
Coefficient of expansion 25-300°C°C-1(x10-6) | 0..56 |
Softening point °C | 1670 |
Annealing point°C | 1210 |
Strain pont°C | 1110 |
Youngs modulus(pa) | 7.3*1010 |
2)Fused quartz crucible
Theraml conducticity | 1.38(w/mok) |
Coefficient of thermal expansion(0-1000°C) | 0.55(10-5/°C) |
Normal operating temperature Continuous usage | ~1050°C |
Normal operating temperature Non-continuous usage | ~1250°C |
Strain point | ~1075°C |
Strain point | ~1180°C |
Hot procesing temperature | ~1700-2100°C |
Devitrification temperature | Starting at ~1000°C,high temperature |
4.Various dimensions of quartz crucible are available:
|
|
| Wall thickness(mm) | R | r | ||
T1 | T2 | T3 | |||||
8" | 203±2 | 153±3 | 5.5±1.5 | 3 | 8.5 | 305 | 30 |
10" | 254±2 | 178±3 | 6.0±1.5 | 3.5 | 9 | 305 | 70 |
12" | 305±2 | 228±3 | 6.5±1.5 | 4 | 9.5 | 305 | 80 |
14" | 355±2 | 254±3 | 7.5±1.5 | 5 | 10.5 | 400 | 90 |
16" | 404±2 | 305±3 | 8.5±1.5 | 6 | 11.5 | 400 | 90 |
18" | 457±2 | 355±3 | 8.5±1.5 | 6 | 11.5 | 500 | 120 |
20" | 508±4 | 381±3 | 10±3 | 6 | 11.0 | 500 | 120 |
22" | 558±4.5 | 381±3 | 10±3 | 7 | 11.0 | 558 | 89 |
24" | 610±4.5 | 381±3 | 11±2 | 7±1 | 11.0 | 610 | 89 |
Contact Us
- STA Refractory (Zhengzhou) Co., Ltd.
- Contact nameAlice Wang Chat Now
- Phone86-371-55180399
- AddressJinshui Zone, Zhengzhou, Henan
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