Zhengzhou Annec Industrial Co., Ltd.
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Mullite High Alumina Insulating Brick Kilns Refractory Fire Brick Heat Insulation For HBS
Definition:
Mullite High Alumina Insulating Brick Kilns Refractory Fire Brick Heat Insulation For HBS is also called high alumina insulating brick. It contains more than 48% Al2O3 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.
Mullite High Alumina Insulating Brick Kilns Refractory Fire Brick Heat Insulation For HBS 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.
Advantage:
1. It has advantages with small bulk density, high cold crushing strength, and high refractoriness under load, small dimension tolerance and good thermal shock resistance.
2. It has the lowest and most stable thermal conductivity in various insulating refractory bricks.
3. It can reduce the total weight of furnace body and the thickness of furnace wall effectively, improve heat efficiency, lower energy consumption, improve work conditions and production efficiency, and considerable economic benefit can be obtained.
Application:
Mullite High Alumina Insulating Brick Kilns Refractory Fire Brick Heat Insulation For HBS ,also know as high alumina insulation brick. The lining and the heat insulation layer of the kiln ,and the part of the erosion of the material without strong high temperature meiting .The surface contact temperature shall not be higher than 1350℃.
High qulity high alumina bricks can be used in direct contact with the flame of the furnace lining ,but should not be used directly by slay erosion occasions.
Product Description:
| Item | Unit | LG140-0.8L |
| Al2O3 | % | ≥48 |
| Fe2O3 | % | ≤2.0 |
| Bulk Density | g/cm3 | ≤0.8 |
| Cold Crushing Strength | Mpa | ≥3.0 |
| Linear Change on Reheating(≤2%) | ℃ | ≥1400 |
| Thermal conductivity(350±25)℃ | W/mK | ≤0.35 |
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