Polycrystalline Alumina Fiber Blanket is manufactured using the “Sol-Gel” colloidal method to be a micro-crystalline mullite-based high temperature refractory fiber, by a high temperature calcination process. It is made from alumina fiber with double punching and it doesn´t contains additives or other ingredients.
Features:
l Excellent stability at high temperature.
l Slight contraction due to heating.
l Low shot content, remarkable insulating and refractory performance.
l Good thermal reflection capacity.
l Low heat storage, low thermal conductivity.
l Uniform distribution of the diameter of the fiber, high tensile strength.
l Good flexibility at high temperatures, excellent thermal shock and mechanical vibration resistance.
l Chemical stability, high resistance to corrosion.
Application:
l Furnace hot face lining in high-temperature industries
l Backup insulation
l Burner block warps
l Expansion joints
l Gaskets in furnaces
Technical Data:
Description | Polycrystalline Mullite Fiber Blanket |
Classification Temperature (°C) | 1600 |
Continuous Temperature Use Limit (°C) | 1500 |
Chemical Composition (%) | |
Al2O3 | 71-73 |
SiO2 | 27-29 |
Leachable Chlorides | Trace |
Color | White |
Density (kg/m3) | 96/128 |
Tensile Strength (kPa) | >80 |
Permanent Linear Shrinkage (%) | 1400(°C) x 24h <1.0 |
Thermal Conductivity (W/m·K) | |
400°C | 0.09 |
600°C | 0.16 |
800°C | 0.22 |
1000°C | 0.28 |
1200°C | 0.36 |
1400°C | 0.45 |
Specification:
Name | Density (g/m3) | Temperature (°C) | Thickness (mm) | Length (mm) | Width (m) |
Polycrystalline Mullite Fiber Blanket | 100/130 | 1600 | 10 | 21600 | 0.61 |
100/130 | 1600 | 12.5 | 21600 | 0.61 | |
100/130 | 1600 | 25 | 7200 | 0.61 |
*Specific products could be made according to customers’requirements.
