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Silica Brick/

Silicon Refractory Brick

Product: Silica Brick
Usage: high-temperature kiln
Size: can be customized
Country: China
Whether factory: yes
Delivery time: 7-12 days

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Silicon refractory bricks refer to refractory products with a SiO2 content of more than 93%. Silica bricks are made from silica with a SiO2 content of not less than 96% as raw material, adding mineralizing agents and binding agents through mixing, shaping, drying, firing, and other processes. The higher the SiO2 content in the silica raw material, the higher the refractoriness of the product.

silicon refractory bricks
silicon refractory bricks

Technical indicators of silicon refractory bricks

Chemical Composition %SiO2≥94≥95≥96≥96
Refractoriness ℃1710171017101710
Apparent Porosity %≤22≤21≤21≤21
Bulk Density g/cm³≥1.8≥1.8≥1.87≥1.8
True Density g/cm³≤2.38≤2.38≤2.34≤2.34
Cold Crushing Strength Mpa≥24.5≥29.4≥35≥35
Refractoriness Under Load (0.2MPa)T0.6℃≥1630≥1650≥1680≥1680
Permanent Linear Change On Reheating % 1500℃X2h0~﹢0.30~﹢0.30~﹢0.30~﹢0.3
Thermal Conductivity W/m.k 1000℃1.741.741.441.44
20-1000℃ Thermal Expansion 10-6/℃

Characteristics of silica bricks

Silica bricks
Silica bricks

Silica bricks are acidic refractory materials and have strong resistance to erosion by acidic slag or acidic melt. However, they have poor resistance to erosion by alkaline substances and are easily destroyed by oxides such as Al203, K20, Na20, etc., and are resistant to CaO, Oxides such as FeO and Fe2O3 have good resistance.

Where are silica bricks used in high-temperature kilns?

Silica bricks
Silica bricks

Silicon refractory bricks are now mainly used in furnaces such as the partition walls of the carbonization chamber and combustion chamber of coke ovens, the regenerators and slag chambers of steel-making open-hearth furnaces, soaking furnaces, refractory materials in glass melting furnaces, and ceramic firing kilns. vaults and other load-bearing parts. Also used in high-temperature load-bearing parts of hot blast furnaces and acidic open-hearth furnace tops.

Rongsheng supports customized design

silicon refractory bricks delivery
silicon refractory brick delivery

To meet the needs of different industries and equipment, we provide a variety of specifications and models of silica bricks, which can be customized for design. Whether used as high-temperature furnace walls, linings, or other refractory components, silica bricks can provide the best solution to ensure the efficient operation of equipment under various process conditions.



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