Definition:

    High Alumina Insulating Refractory Brick is an ideal insulating refractory refractory material, with advantages of high strength, low thermal conductivity, good insulation property and low price. For various industrial kilns & furnaces, it is a kind of essential refractory for energy saving and temperature preservation.
Light weight high alumina brick is also called high alumina insulating brick. It contains more than 48% Ai2O3 and mainly consists of mullite and glass phase or corundum. It is usually made of high bauxite and a small amount of clay. After the raw materials are grounded, it is made into mud. Then it is cast and molded and fired at 1300~1500℃. Sometimes industrial alumimum is used to replace bauxite. Inorganic matter is added as ignition loss substance in order to increase the porosity of the refractory.

Advantage:

1. Excellent strength at ambient and elevated temperatures.
2. High compressive strength.
3. Very low levels of iron and other impurities.
4. Lightweight and energy-efficient.
5. Lower heat storage than denser refractory.
6. Heats quickly and economically to operating temperature.

Application:

   The application of High Alumina Insulating Refractory Brick​​​​​

1. Furnaces of metallurgy industry, heat treatment furnace

2. Furnaces of chemical industry and construction industry.

3. Furnace of incineration of garbage, recirculating fluidized bed furnace

Product Description: