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[China]
Trade Verify
Address: Yuanzhuang Town Industrial Park, Xinmi City, Henan province, China
Contact name:Marissa
ZHENGZHOU CAIHUA KILN MASONRY INSTALLATION CO.,LTD |
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Verified Suppliers
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Silica refractory brick is fused silica refractorya acid refractory brick which mainly consisting of tridymite, cristobalite, and a small amount of residual quartz and glass phases. The silicon content is 94% or more. True density of the silicon brick is 2.35g/cm3.
CH Refractories has manufactured and installed silicon bricks for
more than 30 years, there are many different kinds molds, when
manufacturing, which will save much mold casting time. CH
Refractories also can design silica firebricks size for you
according to your furnace requirements for free and guide you how
to install on site.
Fused silica refractory brick is slowly calcined at 1350℃ to 1430℃
under a reducing atmosphere. When heated to 1450℃, there is about
1.5~2.2% of total volume expansion. This residual expansion will
make the joints tight and ensure good air tightness and structural
strength of the masonry.
SiO2 has different types of crystals in different temperatures, and
the transform between the crystals will cause the change of the
bulk. So there is a close relationship between the changes of SiO2
crystals and the produce ,performance and usage of silicon bricks.
During the heating, there will be changes of the bulk ,and
cristobalite changes most, then quartz phosphorus is the slowest of
all and it also has good heat-conductivity. Coke oven should use
the silica firebricks with small true density. And the phosphorus
quartz is better than others.
| Items | common silica brick | silica brick used for hot blast stove | |||
| / | CH-GZ-95 | CH-GZ-94 | CH-GZ-93 | Vault brick | Checker brick |
| SiO2%≥ | 95 | 94 | 93 | 95 | 95 |
| Refractoriness/ | 1710 | 1710 | 1690 | ||
| 0.2Mpa refractoriness under load | 1650 | 1620 | 1620 | ||
| Apparent porosity/% ≤ | 22 | 23 | 25 | 22 | 23 |
| CCS/Mpa ≥ | 29.4 | 24.5 | 19.6 | 35 | 30 |
| Bulk densityg/cm3 ≥ | 2.37 | 2.38 | 2.39 | 2.35 | |
| High temperature Creep(0.2Mpa 1550℃50h)/%≤ | 0.8 | ||||
| Thermal linear expansion/%(1500 | 1.26 | ||||
Applications of Silica Fire Brick:
Coke oven
Hot blast furnace
Glass melting furnace
Advantages of CH series Silica Fire Brick:
SiO2 is above 95%
Acid slag corrosion resistance
High softening point with temperature
Free sampleFree construction guidance free 3D design
Customerize mould according to different size requirements for free
Packages and delivery
The fire bricks will be packaged on pallet or wooden carton according to customer's requirements, keep product from humidity. Generally the volum of package is 1.1*1.1*1.1m, which is convenient to delivery. We make sure the package is seaworthy. There are many products in store in our warehouse, and make sure fast delivery to customer.
Plants view
CH Refractories has been major in fire bricks, castable and ramming mass manufacturer for more than 30 years. Products have been exported to many countries, such as Pakistan, Korea, Malaysia, Indoneisa, Germany and so on. There are more than 100 professional engineers to make sure stable product quality. We care high quality and safety of refractories.
