Huachen Refractory

Fused Cast Block / Magnesite Bricks manufacturer

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Silica Brick

The refractories under load of silica brick is very high. They can maintain their volume stability when working at high temperatures for a long time, and do not contaminate the glass melt. Therefore, they are very suitable as building materials for glass furnace.

Other name: Dinas brick, Fused silica brick

Model Number: 96A

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 furnace. 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 furnace with larger daily output.

In addition, we can also provide fused silica brick for glass furnace hot repair. It is a new type silica brick, made from fused  quartz as raw material. It has high strength, low expansion rate, and excellent thermal shock resistance during heating.

Advantage:

High purity, good high temperature strength, strong erosion resistance

Application:

Superstructure and crown in glasss furnace/kiln, fused silica brick for hot repair


Silica brick physical and chemical

Chemical Composition (%)HCR 96AHCR 96BHCR 95AHCR 95B
SiO2≥96≥96≥95≥95
Fe2O3 ≤0.8≤1.0≤1.2≤1.2
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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