Corundum-Mullite Brick for Furnace Sillimanite
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SPECIFICATION:
Product features: the blast furnace with sillimanite brick using synthetic mullite, optimization of alumina, high quality flint clay as the main raw material, after high pressure forming, high temperature sintering, the main mineral of mullite. Product has low porosity, load softening point, good creep resistance, chemical corrosion resistance and excellent seismic stability characteristics, mainly for the lower part of blast furnace throat tube, iron estuary, tuyere zone.
Physical properties and chemical composition
Item | GXS-50 | GXS-60 | MLS-65 | |
Chemical composition | Al2O3 | ≥50 | ≥60 | ≥65 |
SiO2 | ≤45 | ≤38 | ≤33 | |
| Fe2O3 | ≤1.2 | ≤1.0 | ≤1.0 |
Apparent Porosity% | ≤18 | ≤18 | ≤17 | |
Bulk Density g/cm3 | ≥2.4 | ≥2.5 | ≥2.55 | |
Cold Crushing Strength Mpa | ≥45 | ≥50 | ≥60 | |
0.2Mpa Refractoriness Under Load T0.6 °C | ≥1550 | ≥1600 | ≥1650 | |
Permanent Linear Change On Reheating(%) 1500°C*2h | ±0.1 | ±0.1 | ±0.1 | |
Thermal Shock Resistances 100°C water cycles | ≥20 | ≥20 | ≥20 | |
Reversible Thermal Expansion 1000°C | 0.55 | 0.6 | 0.6 | |
Pyrometric Cone Equivalent S.C. SK | 35 | 36 | 38 | |
Range of Application | Rider Arches | Superstructure forehearth | Superstructure forehearth | |
- Q: Mullite bricks in alumina alumina is what?
- With mullite as main crystalline phase of high alumina refractory products. Mullite bricks containing Al2O3 64%~75%, refractoriness >1790? C, normal temperature compressive strength 70~260MPa, softening the starting point for 1600~1700 degrees. The manufacturing method for casting and sintering process.
- Q: What are the properties of corundum mullite?
- Heavy material has good compactness, high compressive strength, resistance to various corrosive gases, good thermal shock resistance, good thermal conductivity and wear resistance.
- Q: Corrosion mechanism of iron on refractory materials
- Iron oxide can not be used as refractory,
- Q: Which is faster for heat transfer between corundum bricks and high alumina bricks?
- 43 3.65kg or so, the use of temperature 75, high aluminum in about 1520, 43 of brick 1430 or so, the color of 75 pan white, 43 of the Loess color. In short, the difference is great.
- Q: 2000 degree of high temperature materials, which belong to high temperature insulation materials?
- What can withstand 2000 degree high temperature materials on the market? What are the materials belong to high temperature materials? High temperature insulation material the most common are the following: calcium silicate shell, aluminum silicate cotton felt, glass surface, diatomite, vermiculite, foamed cement etc.. Among them, the first three are the most common, especially the aluminum silicate cotton felt, which can withstand 650 degrees of high temperature.
- Q: What material is heat insulated and not afraid of fire?
- According to the different raw materials are divided into rock wool and slag cotton. In 1840, the United Kingdom to achieve the melting of slag after the formation of fibers, produced slag cotton, used for building insulation, so far more than 160 years of history. Features are: thermal insulation performance, also has the fire characteristics, good sound absorption and vibration damping effect, but different materials of mineral wool class containing asphalt, glue or other organic material, easy to produce harmful substances and environmental pollution, low intensity, as the maintenance of the structure of the thermal insulation layer is easy to collapse, the production process is more complicated has been replaced by other materials.
- Q: What are the high temperature insulation materials?
- If there is atmosphere protection, then graphite is a more powerful material. Melting point 3850 degrees Oh, almost all ultra high temperature kiln, can be protected by atmosphere, all with graphite material.
- Q: What kind of refractory material is used in the hearth of reverberatory furnace?
- The alumina fiber has a maximum resistance of 1700 degrees, and the zirconium fiber is generally 1700 to 2200 degrees
- Q: What material is good for refractory bricks?
- The mineral composition of high alumina refractory brick and high alumina refractory brick is corundum, mullite and glass phase. The raw materials are high alumina and sillimanite natural ore. They are also made of fused alumina, sintered alumina, synthetic mullite and calcined alumina in different proportions with clay. It is produced by sintering process. But the products are casting brick, brick, brick fused grain and unshaped refractory brick. High alumina refractory brick is widely used in iron and steel industry, non-ferrous metal industry and other industries.
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Corundum-Mullite Brick for Furnace Sillimanite
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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