Silica Fire Brick - Acid Resistant Refractory Glass Furnace Silica Brick
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 30000 m.t./month
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General Information
The silica brick can be widely used in coke oven, hot blast furnace, glass furnace and carbon furnace. In glass industry, it is mainly employed to build the doghouse crown, suspended wall of channel, top crown and inlet sealing. In metallurgy industry, it is adopted as the nozzle brick.
Features
1.High purity
2.Long service life
3.Accurate size tolerance
4.Pure color
5. Luster appearance
6..Good thermal conductivity
7.Good creep resistance
Applications
1. Doghouse crown, suspended wall of channel, top crown and inlet sealing of glass furnace
2. High temperature part of coke oven.
Physical and chemical index
Item | BG-94 | BG-95 | BG-96A | BG-96B | |
Chemical composition | SiO2 | ≥94 | ≥95 | ≥96 | ≥96 |
Fe2O3 | ≤1.5 | ≤1.5 | ≤0.8 | ≤0.7 | |
Al2O3+TiO2+R2O | ≤1.0 | ≤0.5 | ≤0.7 | ||
Refractoriness °C | 1710 | 1710 | 1710 | 1710 | |
Apparent Porosity% | ≤22 | ≤21 | ≤21 | ≤21 | |
Bulk Density g/cm3 | ≥1.8 | ≥1.8 | ≥1.8 | ≥1.8 | |
True Density,g/cm3 | ≤2.38 | ≤2.38 | ≤2.34 | ≤2.34 | |
Cold Crushing Strength Mpa | ≥24.5 | ≥29.4 | ≥35 | ≥35 | |
0.2Mpa Refractoriness Under Load T0.6 °C | ≥1630 | ≥1650 | ≥1680 | ≥1680 | |
Permanent Linear Change On Reheating (%)1500°CX2h | 0~+0.3 | 0~+0.3 | 0~+0.3 | 0~+0.3 | |
20-1000°C Thermal Expansich10-6/°C | 1.25 | 1.25 | 1.25 | 1.25 | |
Thermal Conductivity (W/MK) 1000°C | 1.74 | 1.74 | 1.44 | 1.44 | |
- Q: Why will expand when heated brick
- In the process of SiO2 drying, the four crystalline transformation points of 117, 163, 180~270 and 573 DEG C are found, among which the volume expansion caused by the 180~270 is the largest.
- Q: The specific content is what gb/t2608-2012 brick
- The provisions of the brick classification, technical requirements, test methods,
- Q: What is the main material of silica brickIt's common, the kind we see so often!
- An acid refractory consisting mainly of quartz and square quartz and a small amount of residual quartz and glass.
- Q: How much is the highest melting point of silicon?
- . True density 2.35g/cm3. With acid resistance, slag erosion performance. Higher high temperature strength. The softening start temperature is 1620~1670 degrees. Long term use at high temperature without deformation. The thermal shock resistance is low (the heat exchange in water is 1~4 times). The natural silica is used as the raw material, and a proper amount of mineralizer is used to promote the transformation of quartz into quartz in the body. Slowly sintered at 1350~1430 DEG C in the reducing atmosphere. The total volume of heating to 1450 DEG about 1.5~2.2% expansion, the residual expansion will make cutting seam sealing, ensure masonry tightness and good structure strength, so that the brick load softening temperature will reach 1750 degrees Celsius above 1620 degrees in the case of the highest melting point.
- Q: What role does silica play in refractories?
- The natural mineral of silica is called quartz. In refractories, silica and siliceous refractory materials contain more silica. Silica is acidic at high temperature, and siliceous refractory can resist acid slag corrosion
- Q: How to judge the quality of brick, clay brick, high alumina brick furnace from the appearance?
- Mainly depends on the color and density of brick. Another black clay brick and brick with iron oxide formation and how much the size of bricks
- Q: The high thermal conductivity of silica brick and traditional brick what is the difference?
- The scale quartz is a spear shaped double crystal structure, very compact and favorable to the increase of thermal conductivity. The high thermal conductivity of silica brick in improving thermal conductivity and other performance indicators and traditional coke silicabrick agreement.That is to say, the high thermal conductivity of silica brick all inherited the traditional advantages of coke oven silica brick, on the basis of further highlight the characteristics of high thermal conductivity
- Q: The chemical composition of silica brick and its physicochemical index?
- The physicochemical index of silica brick:Turn left to |
- Q: High temperature refractory material?
- Basic refractories in Magnesium Oxide and calcium oxide as the main component, the main products are magnesia brick, magnesia chrome brick, magnesia zirconia brick, magnesia brick, magnesia spinel brick, magnesia calcium brick, dolomite brick and the latest development of magnesia spinel brick and so on. With Magnesium Oxide (MgO) more than 80% of the refractory brick called magnesia brick,
- Q: The formula in the refractory brick, and firing curve, who knows?
- Iron scale powder 0.45-0.55%, cement 0.9-1.1%, lime milk 6.5-7.5%, pulp 1.95-2.2%, the silica powder, perlite will be added to the wet mill in proportion, and then add iron scale powder, cement, dry roller 1-2 minutes later
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Silica Fire Brick - Acid Resistant Refractory Glass Furnace Silica Brick
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 30000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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