High Alumina Brick - High Strength, Low Thermal Conductivity Insulation Firebrick for Kiln
- Ref Price:
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 pc
- Supply Capability:
- 10000000 pc/month
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Quick Details
| Place of Origin: | Henan, China (Mainland) | Shape: | Block | Material: | Alumina Block |
| SiO2 Content (%): | customized | Al2O3 Content (%): | customized | MgO Content (%): | customized |
| CaO Content (%): | customized | Refractoriness (Degree): | Common (1580°< Refractoriness< 1770°) | CrO Content (%): | customized |
| SiC Content (%): | customized | Model Number: | STA-000123 | Brand Name: | CNBM |
| AL2O3%: | 48 | Fe2O3%: | 2.0 | Densityg/ cm³ ≤: | 1.0/0.9/0.8/0.7/0.6/0.5 |
| Compressive strengthMpa≥: | 4.0/3.5/3.0/2.5/2.0/1.5 | linear change on reheating: | 1400C/1400C/1400C/1350C/1350C/1250C | thermal conductivity350°C±25 °C W/m.k: | 0.50/0.35/0.35/0.30/0.25/0.20 |
Packaging & Delivery
| Packaging Details: | Polythene-foamed sheet bag and wooden case and wooden pallet or pack as customer's requirements. |
| Delivery Detail: | about 30 days |
High strength, low thermal conductivity High Alumina insulation firebrick
This product uses high-grade hollow ball and alumina as the main raw materials, made by high temperature sintering. With features of High strength, low thermal conductivity, suitable for 1400°C below’s furnace insulation and lining.
Chemical properties
Lg-1.0 | Lg-0.9 | Lg-0.8 | Lg0.7 | Lg0.6 | LG0.5 | |
AL2O3% | 48 | |||||
Fe2O3% | 2.0 | |||||
Densityg/ cm³ ≤ | 1.0 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 |
Compressive strengthMpa≥
| 4.0 | 3.5 | 3.0 | 2.5 | 2.0 | 1.5 |
linear change on reheating≤2%×2h Lab Temperature °C | 1400 | 1400 | 1400 | 1350 | 1350 | 1250 |
thermal conductivity350°C±25 °C W/m.k | 0.50 | 0.35 | 0.35 | 0.30 | 0.25 | 0.20 |
- 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%.
- Q:How much is one ton / ton of high alumina refractory brick?
- The price of high alumina refractory bricks is not equal, according to the quality index of GB2988-2012
- 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:The difference between light high alumina brick and heavy aluminum brick
- Lightweight high alumina bricks, commonly called insulating refractory bricks, also known as insulating refractory bricks. First of all, literally, lightweight aluminum bricks and heavy aluminum bricks are very different in weight. Lightweight high alumina bricks, also called insulated high alumina bricks, are designed for insulation and heat preservation. In normal use, the utility model is not directly contacted with the furnace temperature, and is a refractory brick product which is close to the furnace wall and has the function of heat insulation and heat preservation.
- Q:What are the main components of high alumina bricks?
- High alumina brick materials according to the main mineral phase can be divided into: aluminum silicate minerals, such as sillimanite, kyanite, andalusite, and synthetic mullite.
- Q:What are ordinary bricks, refractory bricks, hollow bricks?
- Hollow brick is divided into cement hollow brick, clay hollow brick, shale hollow brick. In March 2011 Yunnan Yingjiang earthquake occurred in 5.8, the use of cement hollow brick houses collapsed and killed several people, due to safety concerns that Yunnan intends to disable the cement brick, Shandong Qingdao in the construction of real estate has also been halted the use of cement hollow brick. Professional claims in the construction industry argue that the prohibition of the use of such statements is unscientific and unprofessional. Misleading the public, it must be corrected. Hollow brick is only a kind of building material, and it is no problem to use it in scientific way. Hollow brick in use is very scientific, high quality requirements, the investigation of the foundation is suitable for the use of hollow bricks, how to design, construction, cement and other related ingredients, there are no problems. According to strict procedures, scientific use, strict implementation of relevant national standards, the use of qualified hollow bricks, there is no problem. Similarly, if the use of solid bricks does not strictly comply with the relevant standards of the state, the same will be a problem.
- Q:Can high alumina brick resist carburizing?
- The resistance to carburization is not directly related to the bulk density of bricks
- Q:What are the requirements for Rubble backfill height?
- Backfill should be filled with large stones, big face, small face upward, the decoration is stable, and then use small stones leveling, the gap between the stones can be swept into the slag, gravel, so that the gap filled.
- Q:Does the chimney have high acid resistance?
- The acid resistant bricks used for chimney are usually made of custom-made trapezoidal acid proof bricks, and the physical and chemical indexes of acid resistant bricks need to be confirmed according to the chimney's actual emission. At this point, you can consult our kerei refractories.
- Q:What is the high temperature limit of refractory bricks and refractory soil?
- Fire clay -- usually refers to folk point stove furnace set with a kind of soil, limit under atmospheric pressure of 1500 degrees fire clay soil 1, properties and uses: clay brick of weak acid refractory material, its thermal stability is good, suitable for hot blast furnace, boiler and flue, smoke chamber lining, etc..2, product specifications form: standard shape, general, special-shaped and special-shaped brick. Physical and chemical properties of fireclay bricks.
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High Alumina Brick - High Strength, Low Thermal Conductivity Insulation Firebrick for Kiln
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 pc
- Supply Capability:
- 10000000 pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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