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High alumina insulating bricks are a key innovation in high - temperature industrial furnaces. Their unique design is centered around a porous network structure. This structure is not only a simple arrangement of pores but a sophisticated balance between insulation performance and mechanical strength.
The porous network in high alumina insulating bricks is carefully engineered. The pores act as barriers to heat transfer. When heat tries to pass through the brick, these pores disrupt the heat flow path, reducing the overall heat conduction. At the same time, the solid parts of the brick maintain the necessary mechanical strength to withstand the high - temperature environment and mechanical stress in industrial furnaces.
One of the most significant features of high alumina insulating bricks is the clear quantitative relationship between porosity and thermal conductivity. Through extensive research and testing, it has been found that for every 5% increase in porosity, the thermal conductivity decreases by 0.1 - 0.3 W/(m·K). This data is crucial for understanding the energy - saving potential of these bricks.
Let's take a look at a comparison table:
| Porosity (%) | Thermal Conductivity (W/(m·K)) |
|---|---|
| 30 | 1.2 |
| 35 | 1.0 - 0.9 |
| 40 | 0.8 - 0.7 |
This data clearly shows that as the porosity increases, the thermal conductivity decreases significantly, which means better insulation performance and lower energy consumption in industrial furnaces.
To illustrate the economic value of high alumina insulating bricks, let's take the example of a ceramic firing tunnel kiln. In a traditional ceramic tunnel kiln, the energy consumption is relatively high due to the poor insulation of the furnace lining.
After replacing the original lining with high alumina insulating bricks, the energy consumption data shows a remarkable reduction. For instance, in a certain ceramic factory, the unit energy consumption decreased by 25% - 30% after the replacement. This reduction in energy consumption directly translates into cost savings for the factory, improving its overall economic efficiency.
High alumina insulating bricks produced by our company comply with ISO/ASTM international standards. This compliance is not only a guarantee of product quality but also enhances the export competitiveness of the products. International customers can have full confidence in the quality and performance of our products.
Meeting these standards means that our high alumina insulating bricks have passed a series of strict tests, including tests on thermal conductivity, mechanical strength, and chemical stability. This ensures that the products can perform stably in various high - temperature industrial environments around the world.
Q: Can high alumina insulating bricks withstand extremely high temperatures?
A: Yes, high alumina insulating bricks are designed to withstand high - temperature environments. They can maintain their structural stability and insulation performance at temperatures up to 1500 - 1700°C.
Q: How long is the service life of high alumina insulating bricks?
A: Under normal operating conditions, the service life of high alumina insulating bricks can reach 3 - 5 years. However, this may vary depending on the specific operating environment and usage conditions.
If you are interested in learning more about the energy - saving benefits and technical details of high alumina insulating bricks, click here to download our technical whitepaper or contact us for a consultation. Discover how our high alumina insulating bricks can bring significant economic benefits to your high - temperature industrial furnaces.
