Factory Price Silica Refractory Brick Alumina Silica Fire Brick
Custom Silica Bricks For Glass Furnace
Description of Factory Price Silica Refractory Brick
The main components are tridymite, cristobalite and a small amount
of residual quartz, acidic refractory materials in glass phase.The
silica content is above 94%. The true density is 2.35g/cm3. It has
the performance of resisting acid slag corrosion. Higher high
temperature strength. The initial temperature of softening under
load is 1620~1670℃. Long-term use under high temperature without
deformation. Low thermal shock stability (heat exchange in water is
1 to 4 times). Natural silica is used as raw material, and an
appropriate amount of mineralizer is added to promote the
conversion of quartz into tridymite in the green body. Fire slowly
at 1350~1430°C under reducing atmosphere. When heated to 1450°C, a
total volume expansion of 1.5~2.2% will occur, and this residual
expansion will make the cuts tightly bonded together to ensure good
air tightness and structural strength of the masonry.
20 Years experience in refractories, Stable Capability, High
Quality, Professional Refractory Technical Team, Provide Free
Sample For Testing, Excellent Service, Competitive Price is the
most important advantage of our products.
Features Alumina Silica Fire Brick
1. Excellent chemical attack resistance, slag resistance and acid
resistance;
2. No pollution to products (such as molten glass, etc.); The main
component of silicon brick is SiO2, and if there are blocks or
surface droplets during use, the quality of molten glass will not
be affected.
3. Excellent thermal stability, the product will not explode during
hot repair, and the repair operation can be carried out directly;
4. High temperature volume stability, no shrink in burn repeatedly.
5. Small bulk density. The mass of the furnace can be reduced.
6. After repair (hot repair), there will be no peeling and other
phenomena, and it is safe and reliable for long-term use;
Applications of Alumina Silica Fire Brick
Silica bricks are mainly used for the partition walls of the
carbonization chamber and combustion chamber of coke ovens, the
regenerative chamber of steel making open hearth furnaces, soaking
pits, refractory materials of glass furnaces, Tunnel kilns, rotary
kilns, metallurgical furnaces,and ceramic firing kilns, as well as
other load-bearing parts of kilns. It is also used for
high-temperature load-bearing parts of hot air furnaces and acidic
open hearth furnaces.
Silica bricks are also widely used in construction and equipment in
chemical, petroleum, pharmaceutical and other industries.
Product Paramenters Of Alumina Silica Fire Brick
For Glass Furnace
Item | Silica brick for coke oven | Silica brick for glass kiln |
Furnace bed | others | BG-96A | BG-96B | BG-95A | BG-95B |
SiO2% ≥ | 94 | 96 | 96 | 95 | 95 |
Fe2O3 %≥ | / | 0.8 | 1.0 | 1.2 | 1.2 |
0.2MPa RUL°C ≥ | 1650 | 1680 | 1670 | 1660 | 1650 |
FUSION INDES:
one BRICK<20kg
one BRICK ≥20kg | /
/ | 0.5
0.6 | /
/ | 0.7
0.7 | /
/ |
|
True density g/cm3 ≤ | 2.34 | 2.35 | 2.34 |
PLC % 1450°C×2h | +0.2 | 0 | / |
AP % ≤ | 22(23) | 24 | 22(24) |
Thermal expansion
1000°C % ≤ | 1.28 | 1.30 | / |
CCS MPa ≥
one brick<20kg
one brick≥20kg | 30 | 25 | 35(30)
30(25) |
|
