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High-alumina light-weight insulating brick

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Product Description

  product Overview

 

  High-alumina light-weight insulating brick is made by mixing hollow microsphere, microsphere, high-alumina sintered bauxite, alumina powder and bonding agent as per certain ratio, pressing molding, and burning under high-temperature. It’s mainly used for heat insulation of industrial kilns to realize energy saving.

 

  Physical and chemical indicators

 

Item Indexes
LG140-1.0 LG140-0.8L LG135-0.7L LG135-0.6L
Al2O3        %      ≥ 48 48 48 48
Fe2O3        %      ≤ 2.0 2.0 2.0 2.0
Volume density      g/cm³          ≤ 1.0 0.8 0.7 0.6
Ambient compression strength    Mpa        ≥ 3.5 2.5 2.2 1.6
Changes in heating permanent line         %         ≤ 1400℃×12h
-2.0~1.0
1400℃×12h
-2.0~1.0
1350℃×12h
-2.0~1.0
1350℃×12h
-2.0~1.0
Thermal conductivity [W/(m·K)] average temperature (350±25) °C      ≤ 0.50 0.35 0.30 0.25

 

Corresponding parameter set not found, please add it in property template of background
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