Product Description

Silica bricks are the key refractories for high temperature area of industrial kilns and furnances including coke oven,hot blast stove,glass tank etc

Features:
Good resistance against acid slag
High mechanical strength
Stable performance under high temperature environment

Applications:
Breastwall, regenerator, arch block, etc. in glass furnace
Carbonization chamber, combustion chamber in blast furnace

 

1.Physical and Chemical Properties

High purity: SiO2 95-96.5%

Denseç«Ã‚Š�/span>Apparent porosityç«Ã‚Š�/span>17-21%

High RUL: T1ç«Ã‚Š�/span>1670-1700’c

High tridymite content:about 75%

Low true density: 2.33-2.3g/cm3

Low thermal expansion: ç«Ã‚Š�/span>1.25%ç«Ã‚Š�/span>room-1000’cç«Ã‚Š�/span>

ç«Ã‚Š�/span>0.2MPa ×1550’c×50hç«Ã‚Š�/span>Low creep:ç«Ã‚Š�/span>0.5%

Low residual quartzç«Ã‚Š�/span>0-0.5%

2ç«Ã‚Š�/span>Technical features

Crystal silica is used as starting material, composite mineralizer and nanometer materials are used, scientific sintering and controlling schedule are adopted.