The Zero expansion silica bricks also known as zero thermal expansion (ZTE) silica bricks are a specialized type of refractory material engineered to exhibit minimal thermal expansion over a wide temperature range. These bricks are primarily compose
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Zero Expansion Silica Brick Details
The Zero expansion silica bricks, also known as zero thermal expansion (ZTE) silica bricks, are a specialized type of refractory material engineered to exhibit minimal thermal expansion over a wide temperature range. These bricks are primarily composed of silica (SiO2) and other additives that help in achieving their unique properties.
1. Ultra-Low Thermal Expansion:Zero expansion silica bricks possess an extremely low coefficient of thermal expansion (CTE), approaching zero over a specific temperature range.
2.High Thermal Shock Resistance:These bricks demonstrate exceptional resistance to thermal shock, making them suitable for applications where rapid temperature changes occur, such as in kilns, furnaces, and high-temperature industrial processes.
3. Chemical Stability:They have excellent chemical stability and resistance to corrosion from various chemicals, acids, and alkalis.
Brand |
JM-23LD |
|
Melt Index(%) |
≥98 |
|
Bulk Density(g/cm3) |
1.85 |
|
Cold Crushing Strength(MPa) |
≥40 |
|
Apparent Porosity(%) |
≤16 |
|
Thermal Shock Stability(1100℃ water cooling)(Times) |
≥30 |
|
Chemical Analysis(%) |
SiO2 |
≥98 |
Al2O3 |
≤0.2 |
|
CaO |
≤0.01 |
|
Fe2O3+TiO2 |
≤0.1 |
1. Glass Manufacturing:Zero expansion silica bricks are used in the construction of glass melting furnaces and regenerators due to their ability to withstand extreme temperatures and thermal cycling without compromising dimensional stability.
2. Metallurgical Processes: They find application in steelmaking furnaces, non-ferrous metal smelting, and other metallurgical processes that involve high temperatures and aggressive chemical environments.
3. Ceramics Industry: These bricks are utilized in kilns for firing ceramics, where consistent and stable thermal properties are crucial to ensure the quality of the finished products.
4. Petrochemical Industry: In petrochemical refineries and reactors, zero-expansion silica bricks are employed for their resistance to high temperatures and corrosive chemical atmospheres.
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