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our company can product high quality fused silica Rolls
1. Very low thermal expansion coefficient, strong thermal shock stability, no deformation under high temperature
2. Raw material with high purity, excellent chemical and physical properties
3. Precision processing technology, accurate size accuracy
4. Reliable shaft head connection technology
The Physical and Chemical Properties of Fused Silica Ceramic
|
Property |
Unit |
Technical Parameter |
|
SiO2 |
wt% |
≥ 99.5 |
|
Density |
g /cm3 |
≥1.8 |
|
Bending Strength |
MPa |
≥20 |
|
Compressive Strength |
M Pa |
≥80 |
|
Heat Conductivity Coefficient |
W/m20℃ |
1 |
|
Coefficient of Linear Expansion |
×10-6/℃ |
1 |
|
Dielectric Constant |
εr,20℃ |
3.3 |
|
Dielectric Loss |
tanδ×10-3 |
1 |
|
Disruptive Strength |
KV/mm , DC |
≥20 |
|
Acid Resistance |
mg/cm2 |
≤0.1 |
|
Max.Use Temperature |
℃ |
1650(1100) |
|
Transmissivity |
|
/ |
|
Radiation Coefficient |
|
/ |

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