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| Customization: | Available |
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| Feature: | Good Acid Resistance, Good Mechanical Strength, High Refractoriness, Low Thermal Conductivity, Permeability, Thermal Shock Resistance, Volume Stability, Good Acid Erosion Resistance |
| Production Process: | Extrusion |
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Refractory Silica Bricks Description
Silica brick is made of quartz stone material, the content of SiO2 is above 93%, it has good resistance to acid slag and good heat conductivity.And the refractoriness is 1690~1710°C,RUL is beyond 1620°C.
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 contact between the changes of SiO2 crystals and the produce, performance and usage of silica bricks.During the heating, there will be changes of the bulk, and cristobalite changes most, then quartz, phosphorus quartz is the slowest of all and it also has good heat conductivity.Coke oven should use the silica brick with small true density. And the phosphorus quartz is better than othe
Advantages of Silica Refractory Brick:
1) Silicon oxide is above 95%.
2) Good acid erosion resistance.
3) High softening point with temperature.
4) No shrink in burn repeatedly.
5) Temperature of refractoriness under load is above 1650º C.
6) Stable Capability, High Quality, Excellent Service, Competitive price is the most important advantage of our products.
Silica Brick Paramenters
| 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 |
/ / |
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| 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) |
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Refractory Silica Bricks Application
Silica Bricks Mainly used in the construction of regenerative chamber, chute, combustion chamber, coking chamber, furnace roof etc. parts of the coke ovens. Silica Brick For Glass KilnMainly used for coke oven of coking chamber and combustion chamber partition, steel open hearth of regenerative chamber and sediment chamber, soaking furnace, glass melting furnace, refractory silica brick materials and ceramic firing kiln and kiln of the vault and other supporting parts. Also used in hot blast stove of high temperature bearing parts and acid open hearth furnace roof.
ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED
Has 30 years of experience in R & D and design of unshape refractory experts, holds 20 utility model patents and 7 invention patents, and has passed the ISO quality, environment and safety management system certification. The company is committed to the R & D, production and service of refractories used in metallurgy, electric power, nonferrous metals, building materials, chemical industry and other industries. Its products cover 198 kinds of materials and 2369 varieties in three categories (acidic, neutral and alkaline), providing overall solutions for refractories for 1200 domestic and 200 foreign customers.The products are mainly all kinds of stereotyped and amorphous refractories, with full refractory physical and chemical index testing equipment and testing system, through ISO quality, environment, safety three management systems.
Rongsheng holds the third-level qualification certificate of metallurgical general contracting for furnace construction, the second-level anti-corrosion insulation qualification certificate, the quality management system ISO 9001 certification, 14001 certification, 45001 certification, 18001 certification and AAA-level credit enterprise certification. 25 Years of experience, more than 2,000 furnace cases around the world, and a team that can execute more than 20 furnace construction projects at the same time.
1.Are you a manufacturer or a trader?
Manufacturer, some time we help our clients to purchase related products as a trader.
2.What's the MOQ?
The MOQ varies for different products. Please contact us to understand.
3.how can we guarantee quality?
Always a pre-production sample before mass production;Always final Inspection before shipment;
4.Can you provide samples for free?
Yes, we can supply samples for free, and the freight will be undertaken by clients.
5.May I visit your factory?
Yes, we will arrange professional reception personnel to patiently explain to you.
6.Why choose us over other suppliers?
We have a large scale, strong strength, and rich experience, professional technology, and perfect customer service, and have obtained various certifications such as CE/ISO9001/ISO45001.
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