Polycrystalline Mullite Fiber Blanket

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.