Mould Casting Shaped Products
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High Alumina Insulating Blocks for Industrial Furnace
Feature & Advantage
High alumina insulating blocks are specialized refractory materials that are used in various high-temperature applications due to their unique properties. Some key features of high alumina insulating blocks include:
1. Thermal Insulation: They have low thermal conductivity, making them highly effective at reducing heat loss and maintaining high temperatures in furnaces and kilns.
2. Mechanical Strength: They exhibit good mechanical strength and resistance to abrasion, which ensures durability and longevity in harsh conditions.
3. Lightweight: Despite their strength and durability, high alumina insulating blocks are relatively lightweight, which makes them easier to handle and install.
4. Dimensional Stability: They maintain their shape and structural integrity under high-temperature conditions, minimizing deformation and cracking.
5. Energy Efficiency: By providing excellent insulation, these blocks help in conserving energy and reducing operational costs in high-temperature processes.
Typical Application
"Vibration Cast Fireclay Block for Glass Furnace" is commonly used for insulation in the bottom and sidewalls of glass furnaces. These fireclay bricks not only effectively insulate, preventing the outward spread of heat and maintaining a stable high-temperature environment inside the glass furnace, but also possess high strength characteristics. Their unique vibration casting process gives these bricks uniform density and excellent refractory performance, enabling them to withstand the high temperatures and impacts generated during glass furnace operations, ensuring stability and reliability during long-term operation.
Typical Indexes
| Items | FLG-1.2 | FLG-1.0 | FLG-0.8 | FLG-0.7 | FLG-0.6 | |
| Al2O3 | % | ≥ 48 | ≥ 48 | ≥ 48 | ≥ 48 | ≥ 48 |
| Fe2O3 | % | ≤ 2.0 | ≤ 2.0 | ≤ 2.0 | ≤ 2.0 | ≤ 2.0 |
| Bulk Density | g/cm3 | 1.2-1.3 | 1 | 0.8 | 0.7 | 0.6 |
| Cold Crushing Strength | MPa | 15 | 4 | 3 | 2.5 | 2 |
| Reheating Linear Change no more than 2% | % | 1400 | 1400 | 1400 | 1350 | 1350 |
| Thermal Conductivity @350 ± 10°C | W/m·K | 0.55 | 0.5 | 0.35 | 0.35 | 0.3 |