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AC2468 Alumina Foam Insulation, Aluminum Oxide Foam Insulation

Catalog No. AC2468
Material Al2O3
Purity >99.6%
Heat Conductivity Coefficient 0.85-1.2 W/(m.k)

 

Alumina Foam Insulation Description

High Purity Alumina Ceramic Foam InsulationAlumina foam insulation has excellent resistance to corrosion and corrosion of molten aluminum, so it can effectively remove inclusions. Due to its lightweight and low thermal conductivity, the foamed alumina has less accumulated heat energy and obvious energy saving effect. The precise appearance dimensions of alumina filter bricks can speed up the masonry speed and ensure high strength and stability of the masonry.

Alumina Foam Insulation Advantages

Alumina foam insulations have the following advantages:

– Higher strength than refractory ceramic fiber and lightweight ceramic brick.
– Low density
– Low thermal conductivity and linear thermal expansion coefficient.
– Great thermal shock resistance.
– Safe and rapid maintenance.

Alumina Foam Insulation Specifications 

Item SAMCFI-C1 SAMCFI-C2 SAMCFI-C3 SAMCFI-C4 SAMCFI-C5
Bulk density/g·cm﹣³< 0.8 1 1.2 1.4 1.6
Al₂O₃ content/%> 99.6 99.6 99.6 99.6 99.6
Impurity %< 0.1 0.1 0.1 0.1 0.1
Compressive Strength>Mpa 30 65 72 97 135
Reburning line change rate(1800°C×12h)%< 0.45 0.4 0.35 0.35 0.3
Heat conductivity coefficient W/(m.k) 0.85 0.9 0.9 0.95 1.2
Mean temperature 1100±25°C
Working temperature/°C 1800 1800 1800 1800 1800
Max. temperature/°C 1850 1850 1850 1850 1850

 

Alumina Foam Insulation Applications

Alumina ceramic foam insulation can be used as the heat-insulating layer of the refractory lining on the hot side, especially the high-temperature reducing atmosphere furnace (1850 °C). It can be used for a long time under 1800 °C air and reducing atmosphere.

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