Alumina bubble brick and its products are a kind of light refractory material with excellent high temperature resistance and energy saving, and it is very stable to use in various atmospheres. Especially it is used in high temperature kiln at 1800℃. Hongtai Alumina bubble Brick is selected industrial alumina as the raw material. It is produced by a new high-temperature inverted flame kiln and scientific calcination process. It is manually selected, clearly classified, contains less impurities, high conversion rate, stable shrinkage rate, and good consistency. .
Alumina bubble bricks use alumina bubbles, corundum powder, calcined powder, etc. as raw materials, mixed in a certain proportion, and formed by high-temperature sintering. It has the characteristics of high temperature resistance, low thermal conductivity, good thermal insulation performance, good chemical stability (acid and alkaline media corrosion), and low volume density (lighter than the same material, thinner kiln wall, and low cost). It is widely used in the lining of various non-contact melt high-temperature furnaces and the thermal insulation layer of various high-temperature kilns.
Alumina bubble brick products can directly contact the flame, and are suitable for cracking furnaces, hot blast furnaces, heating furnaces, tunnel kilns, push plate kilns, crucible furnaces and various electric furnaces, electric kilns. They are widely used in metallurgy, refractory, Light industry, chemical industry, ceramics, glass, electronics and other industries. The product's dimensions, physical and chemical indicators, and service life have reached or exceeded the level of similar products at home and abroad.
Alumina bubble brick Advantages
High working temperature: Alumina bubble refractory bricks can reach above 1750 degrees, with good thermal stability. The tempering wire has a low charging rate and a long use time. The structure of the furnace body is optimized and the weight of the furnace body is reduced. The high-temperature refractory materials are all heavy-duty refractory bricks. The bulk density is 2.6--3.0 g/cm3, while the alumina bubble brick is only 1.1 ~ 1.5 g/cm3, the volume of cubic meters under the same conditions. Alumina bubble ball refractory bricks can reduce the weight of 1.1-1.9 tons.
Save materials
In order to achieve the same operating temperature, if heavy refractory bricks are used, the price is equivalent to alumina bubble bricks, and a large amount of insulation materials are required. If alumina bubble bricks are used, 1.1-1.9 tons of refractory bricks can be saved per cubic meter.
energy saving
Alumina bubble spheres have obvious thermal insulation properties and low thermal conductivity. Refractory bricks can have a good thermal insulation effect, reduce heat dissipation, improve thermal efficiency, and achieve the purpose of energy saving. The energy saving effect exceeds 30%.
Alumina bubble is a kind of light refractory material with excellent high temperature resistance and energy saving performance, and its performance is stable in various environments. Especially in the high temperature kiln at 1800 degrees Celsius. bubble ball bricks can be used for high-temperature, energy-saving (>30%) down-drawing kilns, shuttle kilns, molybdenum wire furnaces, tungsten Robe furnaces, induction furnaces, and nitriding furnaces. In order to reduce the weight of the furnace body, transform the structure, save materials, and save energy, the thermal insulation refractory bricks will have obvious effects.
Aluminum powder uses industrial alumina as raw material, adopts a new type of high temperature flame klin and scientific calcination process. Manual selection, clear classification, less impurities, high conversion rate, stable shrinkage rate and good consistency.
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