EcoFoam insulating firebricks are engineered using an innovative foaming process, offering exceptional thermal efficiency and environmental sustainability. The advanced microporous structure significantly reduces thermal conductivity, enhancing energy savings while providing outstanding thermal shock resistance.
Manufactured through a precision foaming method, EcoFoam bricks are composed of alumina, clay, and an organic foaming agent, ensuring a uniform structure with optimized insulation properties. This process:
With its superior insulation, sustainability, and adaptability, EcoFoam is the ideal choice for high-temperature applications requiring energy efficiency and long-term durability.
The image on the right compares the pore size distribution of traditional extruded insulating bricks and insulating bricks produced by the slurry foaming casting method, as observed under an electron microscope.
The comparison reveals that the pore size of bricks produced by the slurry foaming casting method is significantly smaller than that of extruded insulating bricks. These micro-pores reduce conduction, convection, and radiation during energy transfer, resulting in a much lower thermal conductivity. This greatly enhances the energy-saving potential of the kiln.
Used as hot face refractory lining or back-up insulation in various industries, such as:
Hot spots in furnace refractory linings cause uneven heating, structural stress, and energy loss, impacting both efficiency and safety. The key to preventing these issues is controlling thermal conductivity across all insulation layers.
✅EcoFoam Low Thermal Conductivity Insulating Firebrick is engineered to minimize heat transfer through its microporous structure, significantly reducing conduction, convection, and radiation. Unlike traditional insulating bricks, EcoFoam ensures uniform heat distribution, preventing localized overheating and maintaining furnace stability.
✅Simply lowering the thermal conductivity of the heat preservation layer can reduce heat loss but may raise temperatures in other furnace layers, compromising safety. EcoFoam’s advanced design effectively reduces thermal conductivity across the entire furnace lining, optimizing energy efficiency without sacrificing durability.
With EcoFoam Insulating Firebrick, furnace operators gain a reliable, high-performance solution that eliminates hot spots, enhances thermal efficiency, and extends furnace life.
| EcoFoam Low Thermal Conductivity Insulating Firebrick | ||||||||
| Grade | Standard | Unit | RTGC23 | RTGC26 | RTGC28 | RTGC30 | ||
| Classification Group | ISO 2245 | 125-0.5-L | 140-0.8-L | 150-0.9-L | 160-1.0-L | |||
| ASTM C155 | 23 | 26 | 28 | 30 | ||||
| Classification Temperature |
°C | 1260 | 1430 | 1540 | 1650 | |||
| Bulk Density | ASTM C 134 | g/cm3 | 0.53 | 0.75 | 0.85 | 0.95 | ||
| Cold Crushing Strength | ASTM C 133 | MPa | 1.2 | 2.2 | 2.8 | 3.5 | ||
| Modulus of Rupture | ASTM C 133 | MPa | 0.8 | 1.5 | 1.8 | 2.0 | ||
| Permanent Linear Change | ASTM C 210 | % | -0.2 (1230℃×24h) |
-0.3 (1400℃×24h) |
-0.5 (1510℃×24h) |
-0.7 (1600℃×24h) |
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| Thermal Conductivity Mean Temperature |
||||||||
| 200℃ | ASTM C 182 | W/m.K | 0.12 | 0.18 | 0.26 | 0.32 | ||
| 400℃ | 0.14 | 0.20 | 0.28 | 0.34 | ||||
| 600℃ | 0.16 | 0.22 | 0.30 | 0.36 | ||||
| 800℃ | 0.18 | 0.24 | 0.32 | 0.38 | ||||
| 1000℃ | 0.20 | 0.26 | 0.34 | 0.40 | ||||
| 0.05MPa Refractoriness Under Load, T0.5 |
°C | 1150 | 1320 | 1450 | 1510 | |||
| Chemical Composition | ||||||||
| Al2O3 | % | 45 | 55 | 65 | 73 | |||
| SiO2 | 51 | 42 | 32.5 | 25 | ||||
| Fe2O3 | 1.0 | 0.9 | 0.7 | 0.6 | ||||
| CaO | 1.5 | 1.0 | 0.6 | 0.3 | ||||
| K2O+Na2O | 1.1 | 0.9 | 0.8 | 0.7 | ||||