Alumina fiber needled blanket is made of alumina short fiber after optimized laying and needled by our self-research equipment. It is completely processed physically and does not contain any organic components. The double-sided needling process enhances the binding force between fibers and ensures the tensile strength of the finished needle blanket. Long-term use temperature can reach 1500 ℃, the highest use of 1600 ℃. In the oxidizing atmosphere, neutral atmosphere or weak reducing atmosphere under the long-term withstand this temperature, can still maintain toughness, strength, softness and fiber structure. Alumina fiber blanket has a particularly outstanding thermal insulation performance, without special atmosphere protection; the use of high temperature and can resist acid and alkali erosion.

Alumina fiber needled blanket is made of alumina short fiber after optimized laying and needled by our self-research equipment. It is completely processed physically and does not contain any organic components. The double-sided needling process enhances the binding force between fibers and ensures the tensile strength of the finished needle blanket. Long-term use temperature can reach 1500 ℃, the highest use of 1600 ℃. In the oxidizing atmosphere, neutral atmosphere or weak reducing atmosphere under the long-term withstand this temperature, can still maintain toughness, strength, softness and fiber structure. Alumina fiber blanket has a particularly outstanding thermal insulation performance, without special atmosphere protection; the use of high temperature and can resist acid and alkali erosion.

Product Model

N-F-1600

Classification temperature

1600 ℃

Long-term use temperature

1500 ℃

Chemical Composition (%)

Al2O3

71-73

SiO2

27-29

Al2O3 SiO2

>99

Fiber diameter (μm)

5-7

Thickness (mm)

8/10/12.5/25/50

Bulk weight (Kg/m³)

96/128/150

Tensile strength at room temperature (kpa)

≥100

Rate of slag ball (%)

φ>0.045mm

≤ 5

φ>0.075mm

≤ 3

φ>0.212mm

≤1

coefficient of thermal conductivity
(W/(m.K))

600 ℃

0.064

800 ℃

0.094

1000 ℃

0.169

1300 ℃

0.25

1500 ℃

0.45

8h line shrinkage (%)

1400 ℃/1500 ℃

≤ 1.0

Specific heat capacity (kJ/(kg · K))

1090 ℃

1.315

• Polycrystalline structure, long-term use temperature can reach 1600 ℃.
• Low thermal conductivity, with good thermal insulation effect.
• Small thermal shrinkage under high temperature conditions.
• Good thermal shock resistance.
• It is an ideal material for making fiber modules, and it can still maintain flexibility in a high temperature environment of 1600°C.
• High strength, easy processing, near the anchor will not be torn and perforated.
• Stable chemical performance, high temperature environment still has acid and alkali resistance, corrosion resistance, can be used in a variety of atmospheres.
• The fiber blanket has high tensile strength and adopts double-sided needle punching process to effectively avoid delamination and slag problems.
• Needle blanket thickness 3mm-100mm.