Alumina Bubble Bricks are for applications up to 1700°C. These bricks have excellent insulating properties and high hot strengths. Bubble alumina bricks are made with tiny hollow insulating spheres made from high-purity alumina (also called bubble alumina). Alumina does not exhibit high thermal conductivity, and when in the form of hollow spheres, its thermal conductivity is additionally reduced. Both properties make Bubble Alumina brick an excellent insulating material that can withstand exceptionally high temperatures.
Characters of Kerui Alumina Bubble Brick
1.High porosity.
2.Low volume density.
3.Good insulation effect.
4.High mechanical intensity.
5.Low thermal conductivity.
애플리케이션 of Kerui Alumina Bubble Brick
Bubble alumina bricks are made with tiny hollow insulating spheres made from high-purity alumina (also called bubble alumina).
Parameters of Kerui Alumina Bubble Brick
| Alumina Bubble brick | Al2O3 | 벌크 밀도 | C.C.S | P.L.C(%) | Thermal Conductivity | R.U.L |
| - | (%) | (g/cm3) | (MPa,Min) | 1600℃*3h | (W/mk) | (0.2MPa,℃) |
| KR-90 | 90 | 1.1 | 10 | ±0.3 | 0.8 | 1650 |
| KR-90 | 90 | 1.3 | 12 | ±0.3 | 0.8 | 1700 |
| KR-95 | 95 | 1.5 | 12 | ±0.3 | 0.7 | 1750 |
