Product Characteristic:

1. Excellent chemical stability

2. Excellent thermal stability

3. Excellent tensile strength

4. Low thermal conductivity

5. Low heat storage

Production Technique

The advanced CWCN equipment and double side needling blanket production line are used in the production of these products. Both the equipment and technique are of leading level. Different raw materials (for example, flint clay,SiO2、Al2O3,Zircon sand, etc.) are used in the production of ceramic fiber blanket, and the fiber formed is made into the product through sedimentation, thermal setting, lengthwise and crosswise cutting and rolling. The product is homogenous with smooth and even surface and high tensile strength . As the aluminum silicate needled blanket does not contain any cementing agent,its resistance to heat is reatly enhanced. Our product are Asbestos-free and Incombustible.

Application

Thermal insulation in electric power boiler, steam turbine and nuclear power station.

Wall lining of chemical industrial high temperature reactor and heating equipment.

Wall lining of high temperature piping, irregular piping and industrial furnace. Thermal insulation for eliminating stress in welding.

Typical Sizes

Length: (600-610)×14000×10(mm), (600-610)×7200×20(mm), (600-610)×7200×25(mm), (600-610)×6000×30(mm), (600-610)×4500×40(mm), (600-610)×3600×50(mm)……

                                     Type      Item

LT

STD

HP

HA

ST

HZ

Chemical Composition

Al₂O₃  (%)

40-44

≥45

47-49

52-57

52-57

52-57

Al₂O₃+SiO₂(%)

≥90

≥96

≥99

≥99

≥99

≥99

Fe₂O₃    (%)

0.7-1.5

≤1.2

≤0.2

≤0.2

≤0.2

≤0.2

Na₂O+K₂O (%)

3-5

≤0.5

≤0.2

≤0.2

≤0.2

≤0.2

Physical Properties

Diameter of Fibre

2~4

2~4

2~4

2~4

2~4

2~4

Density(kg/M³)

64-160

64-160

64-160

64-160

64-160

64-160

Temperature of use ℃

1000

1260

1300

1400

1450

1500

Max.

Melting Point(℃)

1700

1760

1760

1760

1760

1760

Rate of Liner Shrinkage on Heating

≤4        (1000℃x6h)

≤3        (1150℃x6h)

≤3           (1200℃x6h)

≤3        (1300℃x6h)

≤3        (1300℃x6h)

<3        (1350℃x6h)

Wind Erosion Resistance

~25

~25

~25

~25

~25

~25

Tensile Strength

≥0.3MPa

≥0.3MPa

≥0.3MPa

≥0.3MPa

≥0.3MPa

≥0.3MPa

(Bulk Weight 128kg/M³)

Thermal Conductivity  Bulk density（128kg/m3)

W/m.k

0.083（400°C)

0.081（400°C)

0.161（800°C)

0.160（800°C)

0.120（600°C)

0.150（800°C)

0.143（800°C)

0.140（800°C)

0.201（1000°C)

0.199（1000°C)

0.198（1000°C)

0.197（1000°C)

0.196（1000°C)

0.196（1000°C)