Specifications
Low thermal conductivity and shrinkageLow heat storage
Excellent resistance against chemical attack
Easy to machine ,
Thermal Insulation Ceramic Fiber Board For Furnace/Boiler
1.The ceramic fiber board are made of different refractory fiber bulks with excellent chemical stability,organic and inorganic bond bywet method.
with a characteristics of hard, flexible,excellent strength and resistance against corrosion.
2.Typical Application
1).Refractory lining for industrial furnaces
2).Combustion chamber liner, boilers and heaters
3).Back-up insulation for monolithic refractories
4).Transfer of non-ferrous metals
5).Expansion joiot boards
6).Barrier against flame
Technical index | COM | ST | HP | HA | HZ |
Specification(°c) | 1100 | 1260 | 1260 | 1360 | 1430 |
working tem(°c) | ≤1000 | 1050 | 1100 | 1200 | 1350 |
color | white | ||||
density(kg/m3) | 280-600 | ||||
rate of liner(%) (24h density320kg/m3) | -4 | -3 | -3 | -3 | -3 |
rate of thermal conductivity (w/m.k)(density128kg/m3) | 0.085(400°c) 0.132(800°c) 0.18(1000°c) | ||||
tensile strength(mpa) | 0.08-0.12 |
Chemical Composition (%) | COM | ST | HP | HA | HZ |
Al2O3 | 44 | 46 | 47-49 | 52-55 | 39-40 |
Al2O3+SiO2 | 96 | 97 | 99 | 99 | -- |
Al2O3+SiO2+ZrO2 | -- | -- | -- | -- | 99 |
ZrO2 | - | - | - | - | 15-17 |
Fe2O3 | <1.0 | 0.2 | 0.2 | 0.2 | 0.2 |
Na2O+K2O | ≤0.5 | 0.2 | 0.2 | 0.2 | 0.2 |
* low thermal conductivity , low thermal capacity
* High compression strength
* High thermal stability ,resistance to thermal shock,flame and airflow attack
* Resistance to corrosion,high compressive strength.
* High toughness,easy to cut and install quickly
* Accurate dimension and good palneness;