High Alumina Brick for Furnace for Steel
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 10000 m.t./month
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Description:
High Alumina Fire Brick for Furnace for Steel is widely used in the lining of blast furnace,hot blast furnace,glass furnace and other industrial furnace,it has good performance of high-temperature resistance, corrosion resistance , abrasion resistance and spalling resistance. Meanwhile, as the forming process is advanced,this product has very compact structure and small reheating linear change.
Advantages of High Alumina Fire Brick:
High refractoriness.
Good spalling resistance and wear resistance.
Good corrosion resistance.
Good thermal shock resistance.
Applications:
High Alumina Fire Brick is highly applied in below:
Steel furnaces
Iron making furnaces
Glass kiln
Ceramic tunnel kiln
Cement kiln
FAQ:
Payment term:T/T 30 deposit after order confirmed,the balance after goods ready before shipping,or L/C, or Western Uninon for small amount.
Lead time:Normally in 5-10 days after deposit received
Sample apolicy:Sample are always available for each modle
Shipping port: Tianjing
Technical Data Sheet of High Alumina Fire Brick:
PARAMETER | XR-CZ-01 | XR-CZ-02 | XR-CZ-03 | Drawer | Pushing pedal | ||
Al2O3 % SiO2 % MgO % K2O % NaO % | 38-46 | 42-45 | 40-48 | ||||
43-52 | 48-50 | 50-52 | |||||
5-8 | 5-6 | 5-6 | |||||
1.7 | 1.7 | 2.1 | 0.5 | 0.9 | |||
0.5 | 0.5 | 0.7 | 0.3 | 0.5 | |||
Modulus of rupture Mpa | 18 | 20 | 24 | ---- | ---- | ||
Refractoriness under load | 1410 | 1410 | 13900 | 1390 | 1400 | ||
Apparent porosity % | 22 | 26 | 30 | 27-30 | 25 | ||
Bulk density % | 2.15 | 2.0 | 1.9 | 2.05 | 2.15 | ||
Thermal expansion coefficient | 3.0 | 3.0 | 2.3 | 2.3-2.6 | 2.5-3.0 | ||
Thermal conductivity W/M.K | 1.0-1.5 | ||||||
Highest working temperature | 1300 | 1350 | 1300 | ||||
- Q: In 2016, a few of the traditional refractory materials will be able to survive
- The other is in large enterprises and individual has the unique advantage of the small enterprises, with independent technology system, production equipment advanced, there are certain funds set up to deal with risk, timely reform, such enterprises compared to a few years ago the productivity and sales or have declined, but overall is still in the stage of production increased steadily.
- Q: How many cubic bricks does a high alumina brick have?
- It is related to the content of aluminum in high alumina bricks.
- Q: What are the characteristics of high alumina bricks?
- A neutral refractory with an alumina content of more than 48%. Made from alumina or other raw materials of high alumina content; formed and calcined.
- Q: What are the alloy wear resistance materials?
- Alloy wear-resistant materials from different manufacturers different components in Beijing Naimo company as an example, the following alloy wear resistant material:1: Ni Cr alloy wear-resistant material2: chrome carbide wear-resistant material3: high manganese alloy wear-resistant material4: tungsten carbide alloy wear-resistant material5: nickel tungsten alloy wear-resistant material
- Q: What is spalling resistant high alumina brick?
- Using bauxite as main raw materials, the introduction of a small amount of ZrO2 (ZrO2 is due to phase transition, between monoclinic and tetragonal type can improve the thermal stability of the products), adding a certain amount of binder and additives, the particle size distribution control mud, forming and sintering of refractory products produced, called anti stripping high alumina brick.
- Q: How to distinguish the good or bad of the high aluminum brick?
- Weigh the weight of the next block. According to the weight standard, a high alumina brick is 3.9 kg in weight, two in high alumina brick, three in high aluminium brick and 4.5 kg in 4.2. The same grade, the same type of high alumina brick, if the weight of a single brick to this standard, but for high quality high alumina brick, otherwise, can not reach such a weight, it shows good quality. If there is a crack, a large piece of broken angle, four sides of inequality, it is for substandard products.
- Q: The difference between light high alumina brick and heavy aluminum brick
- Lightweight high alumina brick, also called high alumina insulation brick. Alumina content of 48% or more, mainly from mullite and glass phase or corundum composition of lightweight refractory. Volume density 0.4 - 1.35g/cm3. Porosity 66% - 73%, compressive strength 1 - 8MPa. Better thermal shock resistance. Usually, a high alumina clinker is added with a small amount of clay. After grinding, it is poured and shaped in the form of slurry by gas generation or foam method, and it is fired at 1300 - 1500 DEG C. Sometimes industrial alumina can be used instead of some bauxite clinker. Used for lining and insulation of masonry kilns, as well as for areas where there is no strong, high temperature molten material erosion and erosion. When contacting the flame directly, the surface contact temperature shall not be higher than 1350 degrees centigrade.
- Q: What are the lining structures of lime rotary kilns and what are the requirements for refractories?
- The current configuration of domestic calcining active lime rotary kiln refractories are as follows: the discharge end of low cement high alumina castable with 3% steel fiber; the cooling zone and the firing zone: dry magnesia spinel brick with high aluminum brick with high temperature; preheating: high alumina brick; low temperature preheating zone: clay brick light clay brick; feeding end: low cement high alumina castable with 3% steel fiber; in addition, brick size also have the corresponding requirements; dimensional tolerances: dimensional tolerances used in different parts of the requirements are not the same, the general control in 2mm; corner damage: general permit edge damage 40mm and 5mm deep within angle loss in the hot and cold surface is allowed to have only one, three edges and the length of not more than 50mm; there are cracks parallel to the use of surface crack is not allowed, cracks of brick surface are allowed.
- Q: What are the categories of bricks?
- Ordinary brick size of 240 mm * 115 mm * 53 mm, according to compressive strength (Newton / square millimeter, N / mm2) size is divided into MU30, MU25, MU20, MU15, MU10, MU7.5, these intensity levels.
- Q: What should be used as binder for making high alumina bricks?
- Bond for making high alumina brick: soft clay has good plasticity, so the high alumina brick is usually made of soft clay as bond. However, the free Al2O3 free SiO2 and bauxite clinker clay in under 1200 degrees occurred two times of Mullization reaction, generate large volume expansion, silicon porosity, strength reduction. Therefore, the amount of clay powder in the ingredient should be no more than 5%.
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High Alumina Brick for Furnace for Steel
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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