High Alumina Brick for Foundry
- 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 Refractory Brick for foundry are high performance refratory products manufactured with unique shot removing and vacuum forming process, provide excellent high temperature stability, extra low thermal conductivity and compressive strength.
Advantages of High Alumina Refractory Brick:
High refractoriness.
Good spalling resistance and wear resistance.
Good corrosion resistance.
Good thermal shock resistance.
Applications:
High Alumina Refractory 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:
Item | High Alumina Refractory Brick for foundry | |||
0.6 | 0.8 | 1.0 | 1.3 | |
Al2O3 (%) | 40 | 40 | 40 | 40 |
Fe2O3 (%) | 1.5 | 1.5 | 1.2 | 2 |
SiO2 | 55 | 55 | 55 | 55 |
Bulk Density (g/cm3) | 0.6 | 0.8 | 1.0 | 1.2 |
Apparent Porosity % | 70 | 60 | 55 | 50 |
Cold Crushing Strength (Mpa) ≥ | 2.0 | 2.5 | 3.0 | 4.0 |
Reheating Linear Change (%)°C X 12H ≤ | 1300℃ -0.5 | 1350℃ -0.5 | 1350℃ -0.9 | 1350℃ -0.9 |
Thermal Conductivity((W/m.k)(1000°C) | 0.33 | 0.60 | 0.45 | 0.80 |
Max Service Temperature (°C) | 1200 | 1280 | 100 | 1350 |
- Q: What are the common thermal insulation materials for thermal conductivity?
- The single organic insulation material should be the best polyurethane in the field. In accordance with the production process can be divided into on-site foam polyurethane and factory prefabricated rigid foam polyurethane board. The scene is polyurethane foam isocyanate and polyol to cool (polyether or polyester) two components as the main raw materials with additives, the on-site spraying construction with thermal insulation and waterproof function of the rigid foam material.
- Q: What is the content of free silica in the refractory bricks of high alumina bricks?
- In the meantime, the free silica content of silicon brick is as high as 90% above. Therefore, the most serious damage is silicon brick, followed by clay brick, high alumina brick, magnesia brick and so on.
- Q: Can high alumina brick resist carburizing?
- It is heavy brick mullite brick, brick to do the heavy weight to more than 2.4 manufacturers can achieve a few feeling
- Q: Are there any differences between insulating bricks and refractory bricks?
- The insulation performance of thermal conductivity of insulating brick in general 0.2-0.4 (average temperature 350 - 25 DEG C) w/m.k, and the thermal conductivity of refractory brick in 1 (the average temperature of 350 - 25 DEG C) above w/m.k, which can obtain the insulation performance of insulating brick than refractory brick insulation performance is much better.
- Q: What does refractory consist of?
- According to the chemical characteristics of refractory raw materials can be divided into acidic refractory materials, such as silica, zircon etc.; neutral refractory raw material, such as corundum, bauxite, mullite (acidic) (acidic), Ge (alkaline) iron and graphite; alkaline refractory materials, such as magnesite, dolomite, magnesium sand calcium sand.
- Q: How high can aluminum bricks expand at 80O degrees of heat?
- The expansion of high alumina brick is not only related to temperature, but also related to its material composition. The refractory temperature of high alumina brick is above 1770 centigrade. The temperature of 800 DEG C has little influence on the expansion of high alumina brick.
- Q: Use of high alumina refractory bricks?
- High alumina brick refractory than clay refractory bricks and brick refractory degree are higher, up to 1750~1790 DEG C, which belongs to high-grade refractory materials.
- Q: How does the physicochemical index change when the high alumina brick is used at high temperature?
- If the range of softening temperature exceeds the load, the constants of other physical and chemical indexes will also increase or decrease.
- Q: What are the categories of bricks?
- In a proper ratio of lime sand brick and quartz sand, sand or fine sand, the ground, Kazumi Wa, semi dry pressing and autoclaved curing and. The fly ash brick is made of fly ash as main raw material and mixed with cement material such as coal gangue, stone powder or clay. It is made up of batching, molding, drying and roasting. It can make full use of industrial waste residue and save fuel.
- Q: High alumina brick 80 with which high aluminum cement?
- In order to maintain a reasonable comprehensive lining, should adopt high quality aluminum refractory mud, such as Sichuan resistance card phosphate refractory mud, refractory clay, high alumina refractory mud PA-80 LN-75, if you use the card volume of Sichuan resistant refractory clay masonry, the effect is better.
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High Alumina Brick for Foundry
- 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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