Alumina Bubble Brick

  • Alumina Bubble Brick

Product Description And Parameters

Main Composition:Al2O3

Application:Petrochemical industry, ceramic industry, etc

Raw Material:Alumina bubble

Size:230*114*65mm or customized

Refractoriness:≥1800℃

Color:White

Alumina Bubble Brick is a brick made of alumina hollow spheres as the main raw material, high-performance alumina ultrafine powder as an additive, organic materials as a binder, and dried and formed.

Features
1.High Service Temperature.
2.High Purity.
3.Low Thermal Conductivity.
4.Low Bulk Density.
5.High Mechanical Strength.

Application
Alumina Bubble Brick can be used in high-temperature shaft kilns, shuttle kilns, induction furnaces, nitriding furnaces, etc., and also can be used for service linings in manufacturing high-purity quartz for the electronics industry such as ceramic tile linings in gas turbines and backup linings in reactors.

Item Alumina Bubble Brick
CH-85 CH-90 CH-99
Al2O3(%) ≥85 ≥90 ≥99
SiO2(%) ≤0.8 ≤0.5 ≤0.2
Maximum Service Temperature( ℃) 1680 1700 1800
Bulk Density(g/cm3) 1.4-1.7 1.4-1.7 1.4-1.7
Cold Crushing Strength(Mpa) ≥12 ≥10 ≥9
Refractoriness Under Load (0.1Mpa, 0.6%) (℃) ≥1650 ≥1700 ≥1700
Thermal Conductivity ( hot surface 1000℃)(w/m.k) ≤0.8 ≤1.3 ≤1.5

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