| Place of Origin: | China |
|---|---|
| Brand Name: | CH Refractories |
| Certification: | ISO |
| Model Number: | CH-GZ |
| Minimum Order Quantity: | 5 tons |
| Price: | 300-600USD/T FOB |
| Packaging Details: | Pallet or wooden carton |
| Delivery Time: | 15-20 working days |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 3000 tons per month |
| Name: | Silica Fire Brick | Size: | 230mm*114mm*65/75mm |
|---|---|---|---|
| Application: | Refractory, Industrial Furnaces | Sio2 Content (%): | 90-95% |
| Material: | Silica Block | Raw Material: | Silica Sand |
| High Light: | 1710C Silica Fire Refractory Bricks,95% Silica Fire Refractory Bricks,1690C silica refractory bricks |
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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.
