Mullite Insulating brick
Description:
Mullite insulating brick is a high alumina refractory brick with mullite as the main crystal phase, and its refractoriness is up to 1790 degrees. With the increasing demand for energy conservation in the world, the development of light weight insulating materials is rapid, and mullite insulating bricks are one of the ideal insulating refractories at present.
Advantages:
Resistant to high temperature, high strength, low thermal conductivity, and can directly contact the flame
Application:
Ceramic tunnel kiln, roller kiln, electric porcelain shuttle kiln and other industry furnace/kiln insulating layer
Alumina bubble brick
Description:
The
alumina bubble brick is an insulating refractory product made of
alumina hollow spheres as the main raw material. It is mainly used as a
thermal insulation layer for high temperature industrial kiln below 1800
degrees and high temperature thermal equipment. Alumina hollow spheres
are used as the main material to make products of various shapes. The
product has high mechanical strength, which is several times that of
ordinary lightweight products, and the bulk density is only one-half of
that of corundum products.
Advantages:
High service temperature, lighter weight, save material and save energy
Application:
Lining
of high temperature furnaces in refractory materials, industrial
ceramics, electronic ceramics, petrochemicals, metallurgy and other
industries and insulation materials for ultra-high temperature furnaces
Mullite insulating brick physical and chemical
| HCR Brand | Classification Temperature | Bulk Density | Cold Crushing Strength | Permanent Linear Change On Reheating | Thermal Expansion | Thermal Conductivity | Al₂O₃ | Fe₂O₃ |
| 400℃ | 600℃ | 800℃ | 1000 ℃ |
| ℃ | g/cm³ | Mpa | %CT-30℃ | 1000℃ % | W/m.k | % | ≤% |
| JM 23 | 1260 | 0.6-0.8 | 1.2 | 1230℃ -0.5 | 0.5 | 0.14 | 0.16 | 0.18 | 0.20 | 45 | 1.0 |
| JM 26 | 1430 | 0.8-1.0 | 1.6 | 1400℃ -0.5 | 0.7 | 0.27 | 0.29 | 0.31 | 0.33 | 58 | 1.0 |
| JM 28 | 1540 | 0.8-1.0 | 2.1 | 1510℃ -0.5 | 0.8 | 0.32 | 0.34 | 0.36 | 0.38 | 67 | 0.8 |
| JM 30 | 1650 | 1.0 | 2.5 | 1620℃ -0.9 | 0.9 | 0.41 | 0.43 | 0.44 | 0.45 | 73 | 0.6 |
| JM 32 | 1760 | 1.2 | 3.5 | 1730℃ -0.9 | 1.1 | 0.49 | 0.50 | 0.51 | 0.53 | 77 | 0.5 |
Alumina bubble brick physical and chemical
| HCR Brand | Classification Temperature | Bulk Density | Cold Crushing Strength | Permanent Linear Change On Reheating | Thermal Conductivity | Al₂O₃ | Fe₂O₃ |
| 400℃ | 600℃ | 800℃ | 1000 ℃ |
| ℃ | g/cm³ | Mpa | % 24h | W/m.k | % | ≤% |
| BG 1.2 | 1650 | 1.25 | 6 | 1500℃ ±0.1 | 0.82 | 0.88 | 0.96 | 1.06 | 80 | 0.5 |
| BG 1.4 | 1650 | 1.45 | 8 | 1500℃ ±0.1 | 0.86 | 0.94 | 1.03 | 1.12 | 80 | 0.5 |
