Fireclay Brick - Low Porosity
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CNBMis the specialized manufacturer and supplier of refractory in China, Our products mainly include refractory bricks, refractory castable, refractory precast shape, insulating brick etc. For refractory castable and precast shape they are very popular in the Europe, North American area.
Advantage:
This series of products are made of super calcined flint clay and calcined bauxite, with high pressure formed and high temperature sintered. Due to its low apparent porosity, strong resistance to erosion and high refractoriness under load, they are wildly used in various furnaces, especially suitable to the middle and low parts of regenerator in glass furnaces.
Features:
1. Low bulk density, low thermal conductivity, good thermal performance.
2. Refractory category allow direct contact of fire, suitable for various atmosphere
3. Good integrity with furnace lining, long service life, easy operation, could be shaped freely
Typical Applications:
1. Furnaces of metallurgy industry, heat treatment furnace
2. Furnaces of chemical industry and construction industry.
3. Furnace of incineration of garbage, recirculating fluidized bed furnace
Specification:
Low Porosity Fireclay Brick
Index | Low Porosity Fireclay Products | |||
DN-10 | DN-12 | DN-15 | DN-18 | |
AL2O3 % ≥ | 45 | 45 | 42 | 42 |
Fe2O3 % ≤ | 1.00 | 1.20 | 1.65 | 1.80 |
Bulk Density≥ g/cm3 | 2.40 | 2.35 | 2.30 | 2.25 |
A.P. % ≤ | 10 | 12 | 15 | 18 |
C.C.S (Mpa) ≥ | 70 | 65 | 60 | 48 |
Refractoriness ≥ °C | 1750 | 1750 | 1750 | 1750 |
Reheating Linear Change% | 1400°C×2h -0.1~+0.05 | 1400°C×2h -0.1~+0.05 | 1400°C×2h -0.2~0 | 1400°C×2h -0.4~0 |
0.2mpa Refractoriness under loadT0.6 ≥ °C | 1500 | 1470 | 1450 | 1400 |
- Q: The stove which made of refractory bricks and fireclays will produce cracks after being used. How to solve this problem?
- The use of low expansion materials will be better. But as for the stove, the appearance of crack is attributed to the selected materials or the environment. And when the temperature is not high, there still seems to be crack, so through expansion joint reservation, not allowing itself to crack
- Q: There are various refractory materials inside many kilns such as refractory brick, what is the role of masonry of these refractory materials?
- High temperature prevention, warmth keeping and heat insulation.
- Q: How to test the various components of the refractory brick?
- If you want to know the chemical?compound components, you can do the analysis of meteorological chromatography, and then testing, if you just want to detect contents of elements, you can do a XRF, but you should smash, grind and homogenize the refractory bricks. The specific operation process is not convenient to describe in detail, that is, X ray diffraction, through X ray fluorescence analysis, you can know that the elements and contents contained in it, if you want to understand its internal structure, you can also do a XRD
- Q: How to choose refractory brick
- According to the using environment of your product, process requirements, used place, refractory brick is very wide, there is low temperature, high temperature, there is heat insulation, there is wear resistant, corrosion resistance.
- Q: How to classify light refractory bricks?
- It should be classified based on the production materials of refractory brick! In addition to ordinary light brick (cenosphere material), mullite poly light ball, there is lightweight high aluminum brick, lightweight clay brick, diatomite brick etc.!
- Q: the refractory brick in glass furnace burner was burning, the bricks on both sides of the fire hole were burning the blocked it, what will cause brick burning?
- The firebrick in glass melting furnace is mainly consisted of zircon brick, other ordinary refractory materials can not effectively prevent the erosion of glass solution. Because the glass melting liquid is eutectic mixture compared to the refractory bricks, it penetrates into the refractory brick and reduces its original performance, simply speaking, the glass melting liquid dissolves the refractory bricks as eutectic mixture .
- Q: What is the difference between a clay brick and a red brick?
- Burning bricks are generally low temperature clay brick, brick, brick high.
- Q: is there any requirement for radioactive materials in refractory materials.
- they all do not cause radiological hazards to the environment, so no requirements! analyze rom the element , magnesia. Do not know if it is useful, but material used by refractory materials, firstly any chemical elements are radioactive, human beings can not close, then, such as silicon dioxide: If it is radioactive. analyze from use, such as bauxite, does not have the use value
- Q: What is the life of an old fashioned refractory brick kiln transformed into a flat topped tunnel kiln? what material should be used to transform the old fashioned refractory bricks vault kiln to flat tunnel kiln, and how long is the service life?
- 123
- Q: What are the factors that determine the weight of the refractory bricks?
- (5) Under high temperature, the volume is stable, the inner part of brick will produce unrecoverable volume shrinkage or expansion because of the internal transformation. Therefore, masonry inner will produce stress to make the material break and peel off, and the weight of a ton of bricks is determined by the bulk density and quantity, how much is the weight of refractory bricks, refractory bricks should have the ability to resist the damage, the weight of a piece of brick is determined by the bulk density: Refractory bricks are used under high temperature for a long term: Refractory bricks in the use of the process. Cooltech refractory brick used in various high-temperature equipment: The temperature of some parts of metallurgical furnace and other industrial furnace is uneven due to rapid temperature change during operation. (3) good thermal stability: Refractory bricks should not only have a high fusion temperature, no softening deformation and collapse, causing damage to the masonry. (4) strong resistance to slag: Modern metallurgy and the other industrial furnace heating temperature is generally between l000~1800. Refractory bricks should have the performance that is not easy to melt under high temperature. Therefore. Therefore, it is subject to high temperature conditions of physical and chemical corrosion and mechanical damage, the refractory brick must have the ability to resist high temperature chemical corrosion, the volume of refractory brick is required to be stable under high temperature. (2) High-temperature structural strength, chemical corrosion of metal, but also should have been built in the stove brickwork load or other mechanical vibration, often has the high temperature slag, so the refractory materials performance should meet the following requirements: (1) high refractoriness
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Fireclay Brick - Low Porosity
- 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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