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Light-weight insulating brick

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Product Description

  product Overview:

 

  Light-weight insulating brick is made by mixing hollow microsphere, microsphere, pearlstone and bonding agent as per certain ratio, pressing molding, and burning under high-temperature. It can be divided into such five grades as NG-1.3, NG-1.0, NG-0.8, NG-0.6 and NG-0.5 as per physical and chemical indexes. It’s mainly used for heat insulation of industrial kilns to realize energy saving.

 

  Physical and chemical indicators:

 

Item Indexes
NG-1.3 NG-1.0 NG-0.8 NG-0.6 NG-0.5
Volume density      g/cm³          ≤ 1.3 1.0 0.8 0.6 0.5
Ambient compression strength    Mpa        ≥ 5.0 3.5 2.5 1.3 1.0
Changes in heating permanent line           % 1350℃×12h
-2~+1
1300℃×12h
-2~+1
1250℃×12h
-2~+1
1200℃×12h
-2~+1
1150℃×12h
-2~+1
Thermal conductivity 【W/(m·K)】 average temperature(350±25)℃      ≤ 0.55 0.4 0.35 0.25 0.23

 

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