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Silica Brick

High-quality silica bricks will increase the SiO2 content and reduce the CaO content to improve the corrosion resistance while ensuring high temperature strength. The product is more effective in modern glass kiln with larger daily output.

Other name: Silica brick

Model Number:

Certification: ISO 9001-14001

Minimum Order Quantity: 5 MT

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Silica Brick

Description:

SiO2 and CaO can form CaO·SiO2, it is easily attacked by alkaline substances such as NaOH. It has been found that the CaO·SiO2 phase is the main cause of corrosion of silica bricks in glass kiln. The reaction of the CaO·SiO2 phase with NaOH forms a glass phase in the silica brick and gradually dissolves the SiO2 particles. High-quality silica bricks will increase the SiO2 content and reduce the CaO content to improve the corrosion resistance while ensuring high temperature strength. The product is more effective in modern glass kiln with larger daily output.

Advantage:

High purity, good high temperature strength, strong erosion resistance

Application:

Superstructure and crown in glasss furnace/kiln.


Silica brick physical and chemical

Chemical Composition (%)HCR 96AHCR 96BHCR 95AHCR 95B
SiO296969595
Fe2O3 0.81.01.21.2
Physical characters



True density (g/cm3 )2.342.35
Apparent porosity (%)22 (24)
Cold crushing strength (Mpa)
    Brick Weight<20Kg
    Brick Weight 20Kg

35 (30)
30 (25)
Refractoriness under load (0.2MPa)1680 1670 1660 1650




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