Other name: Silica brick
Certification: ISO 9001-14001
Minimum Order Quantity: 5 MT
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.
High purity, good high temperature strength, strong erosion resistance
Superstructure and crown in glasss furnace/kiln.
Silica brick physical and chemical
|Chemical Composition (%)||HCR 96A||HCR 96B||HCR 95A||HCR 95B|
|True density (g/cm3 )||2.34||2.35|
|Apparent porosity (%)||22 (24)|
|Cold crushing strength (Mpa)|
Brick Weight ≥20Kg
|Refractoriness under load (0.2MPa)||1680 ℃||1670 ℃||1660 ℃||1650 ℃|