Anorthite Insulation Brick is a high-performance refractory material designed for applications requiring excellent thermal insulation and resistance to high temperatures. These bricks are composed of anorthite (CaO·Al₂O₃·2SiO₂) and mullite, which provide a unique combination of low thermal conductivity and high-temperature stability. They are widely used in industries such as steel, petrochemicals, ceramics, and glass due to their ability to maintain structural integrity under extreme conditions.
Product Parameters
Brand |
JM-23LD |
|
Classification temperature (℃) |
1300 |
|
Bulk Density (g/cm3) |
0.55 |
|
Cold Crushing Strength (MPa) |
1.0 |
|
Modulus of rupture (MPa) |
1.0 |
|
(CT℃X24h) Permanent Linear Change (%) |
-0.4 |
|
@ 1,100℃ Thermal Linear Expansion (%) |
0.50 |
|
Thermal conductivity (W/m.k) |
350℃ |
0.14 |
400℃ |
0.15 |
|
600℃ |
0.17 |
|
(%) chemical composition |
Al2O3 |
38 |
Fe2O3 |
0.8 (CaO12%) |
|
Main Applications |
Ceramic Roller Kiln Reheating Reheating Furnace Blast Furnace Petrochemical Furnace General Industrial Furnace etc. |
Product Usage:
Anorthite Insulation Bricks are utilized across various industries due to their superior properties:
Steel Industry: Used as insulation in blast furnaces, soaking pits, and heating furnaces.
Petrochemical Industry: Employed in catalytic cracking furnaces and other high-temperature processes.
Ceramics and Glass Industry: Ideal for kilns and furnaces where thermal stability and insulation are crucial.
Heat Treatment Furnaces: Used in industrial and hobby kilns for consistent temperature control
Product Advantages
Anorthite Insulation Bricks offer several key features that make them ideal for high-temperature applications:
Low Thermal Conductivity: Ensures efficient heat insulation and reduces energy consumption.
High Operating Temperature: Capable of withstanding temperatures up to 1300°C, with some variants reaching up to 1400°C.
Excellent Thermal Shock Resistance: Maintains integrity during rapid temperature changes, preventing cracking and deformation.
Chemical Stability: Resistant to chemical attack, particularly in reducing atmospheres.
Lightweight: Low bulk density makes them easy to handle and install.
Product technology:
The manufacturing process of Anorthite Insulation Bricks involves several critical steps:
Raw Material Preparation: High-purity kyanite, white cement, and foaming agents are carefully selected.
Mixing and Blending: The raw materials are thoroughly mixed to achieve a homogeneous blend.
Molding: The mixture is molded into the desired shape using casting or extrusion techniques.
Drying: The molded bricks are dried to remove excess moisture, ensuring uniformity.
Firing: The dried bricks are fired at high temperatures to achieve the desired density and strength.
Quality Control: Each brick undergoes rigorous testing to ensure it meets industry standards
Why Choose Us?

23+
years experience focus on refractories field

2 plants
with 3 sets of tunnel kilns for 120,000 tonnes capacity

3 QC
Labs Technology Centres

120+ employees
with ISO9001,TUV,SGS,Intertek certifications

100+
abroad customers in 50+ countries

20+
major industry furnace projects yearly
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