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Fused Silica Brick

Fused silica brick for hot repair


Fused Silica Brick
(Zero thermal expansion silica brick)
 
Introduction:
Fused silica brick is also known as zero thermal expansion e silica brick. The main raw materials are amorphous fused silica sand and the thermal expansion coefficient is near zero, so the product is named zero thermal expansion silica brick.
 
Advantages:
*SiO2 content is above 99% , anti-erosion with good acid-resistance 
*Fe2O3 content is less 0.1% ,no pollution to product (or glass melter)
*The thermal expansion coefficient is near zero , no need expansion joint , improve the tightness of masonry
*Excellent thermal shock resistance ,it can be used directly on the hot condition without exploding possibility .
*After hot repair ,without crack and peeling, long service life,  safe and  reliable 
 

Application: 

Mainly used for glass melting furnace ,coke oven and hot blast stove ect heating equipment . It can maintain the heating equipment on hot condition .

Advantages:
*SiO2 content is above 99% , anti-erosion with good acid-resistance 
*Fe2O3 content is less 0.2% ,no pollution to product (or glass melter)
*The thermal expansion coefficient is near zero , no need expansion joint , improve the tightness of masonry
*Excellent thermal shock resistance ,it can be used directly on the hot condition without exploding possibility .

 

*After hot repair ,without crack and peeling, long service life,  safe and  reliable 
Specification
Item Index
SiO2(%) ≥99
Al2O3(%) ≤0.3
Fe2O3(%) ≤0.1
CaO(%) ≤0.1
Bulk Density(g/cm3) ≥1.85
CCS(Mpa) ≥30
Apparent Porosity(%) ≤20
URL(T0.6 , ℃) ≥1650
Thermal Expansion(20-800℃,%) ≤0.2
Thermal Shock Resistance(1100℃,water cycles) ≥30
 

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