Alumina hollow insulation brick, also named Alumina bubble brick, is based on the alumina hollow ball and alumina powder as the main raw material, mixing with other binders by sintering at 1750 degrees high temperature. It is a kind of new type high temperature thermal insulation materials, max working temperature can reach to 1800℃. It has longer service life and can be energy saving.
Alumina bubble brick is widely used in the high-thermal kilns or furnace such as refractory, industrial ceramic, electric ceramic, petrochemical engineering, metallurgy engineering industry as inner layer or the insulation materials for ultra high temperature kilns. This brick can contact with the flame directly, and it is the best choice of inner layer of high thermal furnace.
Specification should be different according to different furnaces/kilns, standard shapes and customized drawings are acceptable.
|
Item |
SJH-85 |
SJH-90 |
SJH-99 |
|
Al2O3(%) |
≧85 |
≧90 |
≧99 |
|
SiO2(%) |
≦15 |
≦8 |
≦0.2 |
|
Fe2O3(%) |
≦0.2 |
≦0.2 |
≦0.2 |
|
Bulk Density(g/cm3) |
1.4-1.7 |
1.4-1.7 |
1.4-1.7 |
|
Max Service Temp.(℃) |
1680 |
1700 |
1800 |
|
Refractoriness Under Load (℃) |
≧1650 |
≧1760 |
≧1760 |
|
Thermal Conductivity w/(m.k, 800℃) |
≦0.8 |
≦1.3 |
≦1.5 |
Have a question or need a quote? Please kindly send us a message and will feedback soon！
We are truly a manufacture, can not only provide the high quality products with the best price, but also offer the best pre-sale service and after-service.
Our company can offer one-stop refractory materials solution for kilns/furnaces, refractory brick, refractory castable, insulation products, ceramic fiber products, kiln refractory construction, etc.
Sure, samples are available, and you are welcome to visit our factory at anytime.
Good question, we are in the Xinmi City of Henan province,China’s largest refractory manufacturing base, the price and quality of the products can be guaranteed.
Of course, we have excellent technical team and can produce products according to customers’ different needs.
For all brick products, we have 1 year warranty, any quality problems on our side during this period, we will bear all the cost of shipment and replacement.
