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$High Alumina Refractory Bricks for Industrial Furnace$

High Alumina Refractory Bricks for Industrial Furnace

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High Alumina Insulating Blocks for Industrial Furnace

99 Sintered High-Dense Aluminum Channel Block

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$High Alumina Refractory Bricks for Industrial Furnace$

High Alumina Refractory Bricks for Industrial Furnace

1.High alumina bricks are refractory bricks made primarily from alumina (Al2O3) and other materials, designed for high-temperature applications like furnaces, kilns, and reactors.
2.Processing: bauxite is used as the main raw material, clinker is sorted by grading and sieved to remove iron, and is prepared by high temperature firing.
3. Manufacturing: Made by mixing raw materials (bauxite or other high-alumina minerals), shaping them into bricks, and firing them at high temperatures. The manufacturing process may include different additives and binders to achieve the desired properties.
4. High alumina bricks are chosen for their durability and efficiency in extreme environments, making them a crucial component in many high-temperature industrial applications.

product details

Features

1. High Refractoriness: They can withstand very high temperatures, making them suitable for use in furnaces and other high-temperature environments.

2. Excellent Thermal Stability: These bricks maintain their structural integrity and mechanical properties even under rapid temperature changes, reducing the risk of thermal shock damage.

3. Good Insulating Properties: While not as effective as specialized insulating materials, high alumina bricks offer some insulation against heat transfer, helping to conserve energy in industrial applications.

4. Resistance to Corrosion and Abrasion: They are resistant to chemical corrosion and mechanical wear, prolonging their lifespan in harsh operating conditions.

5. Low Thermal Conductivity: This property helps to minimize heat loss and maintain consistent temperature profiles within the refractory lining.

Overall, high alumina bricks are valued for their durability, reliability, and ability to withstand extreme conditions in various industrial processes.

Application

High alumina bricks are commonly used in industries such as steel, cement, glass, and ceramics for their ability to withstand extreme temperatures and harsh conditions. Masonry blast furnace, hot blast stove, electric furnace top and ladle permanent lining.

Main physical and chemical performance index

Index	LZ-75	LZ-65	LZ-55	LZ-48
Al2O3 % ≥	75	65	55	48
Refractoriness ℃ ≥	1790	1790	1770	1750
Refractoriness under load (0.6%) ℃ ≥	1520	1500	1470	1420
Permanent linear change (1500℃×2h) %	+0.1~-0.4	+0.1~-0.4	+0.1~-0.4	+0.1~-0.4 (1450℃)
Apparent porosity %	23	23	22	22
CCS MPa ≥	53.9	49	44.1	39.2