High Alumina Insulation Brick

  • High Alumina Insulation Brick

Product Description And Parameters

Composition:SiO2 + Al2O3

Application:Insulation layer for various kinds of industrial furnaces

Capacity:500 tons per month

Size:As your requirements

Raw Material:Bauxite & clay

High alumina insulation brick refers to all lightweight bricks with AL2O3 more than 45%. It is made of bauxite and a small amount of clay. After grinding, it is poured into a slurry form by gas or foam. It burns at a temperature of 1300~1500°C. This kind of brick is not directly exposed to the high temperature in the kiln, but only has a thermal insulation layer near the kiln wall.

Features
1.High purity.
2.Good heat insulation.
3.High Strength.
4.Low Thermal Conductivity.

Application
High alumina insulation bricks are mainly used for heat insulation. In normal use, the kiln temperature is not directly contacted, and it is a kind of refractory brick product which is close to the furnace wall and has heat insulation and heat preservation effect. It can also be used in kilns with hydrogen, carbon monoxide and other gases as a protective atmosphere.

Item

High Aluminum Insulation Brick

LG-0.6

LG-0.8

LG-1.0

LG-1.3

Al2O3%  ≥

45

48

48

48

Fe2O3%  ≤

2.0

2.0

2.0

2.0

Bulk Density(g/cm³)  ≤

0.6

0.8

1.0

1.3

Crushing Strength(Mpa)  ≥

1.8

2.5

3.0

5.0

Linear Change on Reheating 2% (℃*h)  ≤

1200℃*12h

1250℃*12h

1300℃*12h

1350℃*12h

Thermal Conductivity (w/m.k,{350±25℃})  ≤

0.25

0.32

0.45

0.55

Max Service Temperature(℃)  ≥

1250

1250

1300

1350

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