Ceramic spiral has the following characteristics
1) The structure is relatively simple and the cost is low.
2) Reliable work and easy maintenance and management.
3) Compact size, small cross-sectional dimensions, and small footprint. Easy access to hatches and carriages during unloading operations at ports.
4) It can achieve sealed conveying, which is beneficial for conveying materials that are prone to flying, hot, and have strong odors, reducing environmental pollution, and improving working conditions.
Naterial | Unit | A95% Alumina Ceramics | A97% Alumina Ceramics | A99% Alumina Ceramics | A99.7% Alumina Ceramics |
Density | g/cm³ | 3.6 | 3.72 | 3.85 | 3.85 |
Flexural Strength | Mpa | 290 | 300 | 350 | 350 |
Compressive Strength | Mpa | 3300 | 3400 | 3600 | 3600 |
Modulus of Elasticity | Gpa | 340 | 350 | 380 | 380 |
Impact Resistance | MPam1/2 | 3.9 | 4 | 5 | 5 |
Weibull Modulus | M | 10 | 10 | 11 | 11 |
Vickers Hardulus | HV0.5 | 1800 | 1850 | 1900 | 1900 |
Thermal Expansion Coefficient | 10-6K-1 | 5.0-8.3 | 5.0-8.3 | 5.4-8.3 | 5.4-8.3 |
Thermal Conductivity | W/Mk | 23 | 24 | 27 | 27 |
Thermal Shock Resistance | △T℃ | 250 | 250 | 270 | 270 |
*Maximum Use Temperature | ℃ | 1600 | 1600 | 1650 | 1650 |
Volume Resistivity at 20℃ | Ω | ≥1014 | ≥1014 | ≥1014 | ≥1014 |
Dielectric Strength | KV/mm | 20 | 20 | 25 | 25 |
Dielectric constant | εr | 10 | 10 | 10 | 10 |