High Alumina Fire Brick - Alumina Brick - High Aluminum Brick
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 1000000 m.t./month
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Quick Details
| Place of Origin: | China (Mainland) | Shape: | Brick | Material: | Alumina Block |
| SiO2 Content (%): | 48-85 | Refractoriness (Degree): | Common (1580°< Refractoriness< 1770°) | Brand Name: | ZYC |
Packaging & Delivery
| Packaging Details: | On wooden pallets with plastic films cover |
| Delivery Detail: | 15Days |
High alumina fire brick,Alumina brick,High aluminum brick
Features:
1. High refractoriness.
2. Good spalling resistance and wear resistance.
3. Good corrosion resistance.
4. Good thermal shock resistance.
5. High mechanical strength.
6. High-temperature creep rate is low.
Physical and chemical index:
Item/Grade | Fire clay brick | High alumina brick | ||||||
SK-30 | SK-32 | SK-34 | SK-35 | SK-36 | SK-37 | SK-38 | SK-40 | |
AL2O3 % (≥) | 30 | 35 | 38 | 45 | 55 | 65 | 70 | 82 |
Fe2O3 % (≤) | 2.5 | 2.5 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
Refractoriness(SK) | 30 | 32 | 34 | 35 | 36 | 37 | 38 | 40 |
Refractoriness under load, 0.2MPa, °C (≥) | 1250 | 1350 | 1370 | 1420 | 1450 | 1480 | 1530 | 1600 |
Apparent porosity (%) | 22-26 | 20-24 | 20-22 | 18-20 | 20-23 | 20-23 | 20-22 | 18-20 |
Bulk density (g/cm³) | 1.9-2.0 | 1.95-2.1 | 2.1-2.2 | 2.15-2.22 | 2.25-2.4 | 2.3-2.5 | 2.4-2.6 | 2.5-2.7 |
Cold crushing strength ,MPa (≥) | 20 | 25 | 30 | 40 | 45 | 50 | 60 | 70 |
Common sizes:
Straight type | Arch type | Wedge type |
L×W×H (mm) 230×114×65 230×114×75 230×114×32 220×110×60 220×110×50 220×110×40 220×110×30 | L×W×H/h (mm) 230×114×65/55 230×114×65/45 230×114×65/59 220×110×65/50 220×110×75/65 220×110×60/40 | L×W×H/h (mm) 230×114×65/55 230×114×65/45 220×110×75/65 220×110×60/40 |
Other sizes according to customer requiremen | ||
Application:
High alumina brick is widely used in Blast furnaces, Hot Blast Stove, Steel ladle lining, Reheating furnace, Cement kiln, Tunnel kiln,Boiler, Coke oven, Waste incinerators ,Carbon furnace, Glass kiln , Steel smelting furnace and various kiln lining and thermotechnical equipment, etc.
- Q: What are the reasons for the spalling of refractory bricks in the production of lime kiln?
- Therefore, the choice and masonry of refractory bricks are of vital importance. If there is a brick kiln kiln off block process of reproduction, is now because of the use of refractory brick kiln material mostly three grade high alumina bricks. The content of AL2O3 is about 55%, of which the content of Fe2O3 is about 2%, which is weak, and the alkali corrosion resistance is a little worse. In a containing three grade high alumina bricks in the composition of AL2O3, Si2O3, and other elements also contain K, Na trace, were the most, thus causing the system of the low melting point is very low, even at 1400 DEG C has been liquid phase, and generate CaAL12O19 limestone and calcium feldspar etc.. Form corrosion loss. Therefore, a long time will cause the loss of block. On the one hand, it may be caused by construction.
- Q: What are the requirements for Rubble backfill height?
- 1, filling thickness is not greater than 50cm.2, filling, the use of layered filling.
- Q: What are the common thermal insulation materials for thermal conductivity?
- The vacuum heat insulation plate is a kind of high efficiency thermal insulation board made of inorganic fiber core material and high resistance gas composite film. It is made of vacuum encapsulation technology and covered with special interface mortar.
- Q: How to make refractory bricks and boiler wall adhesion more firm?
- Suggest that you use fire brick to increase the length of brick or pull the amount of turn, and use high temperature mortar masonry
- Q: Aluminum content 38, silicon content 55 What refractory bricks?
- High alumina brick:The mineral composition of the high alumina brick is determined by the bauxite used. The mineral composition of the clinker is usually mullite, corundum and glass. The theoretical composition of mullite is Al2O371.8%, SiO2 28.2%, and its melting decomposition temperature is 1840 DEG C. With acicular crystal, network cross structure, high temperature state showed better strength. Corundum in the form of alpha -Al2O3, melting point of 2050 degrees, hardness of Mohs 9, showing a granular and columnar crystal, has good chemical stability, acid, alkaline slag have a certain resistance. Based on the composition of mullite minerals, the phase composition of high alumina brick can be judged according to the content of Al2O3. When the bricks are below Al2O3 71.8%, the base of the composition is mullite and SiO2, such as grade LZ-48 bricks. Because it contains a large number of SiO2 formed in the liquid phase under high temperature is 20% ~ 30%; brick in Al2O3 more than 71.8%, the excess Al2O3 formed corundum crystal under high temperature, while generating 2 high temperature phase, eutectic temperature rise by the low content of Al2O3 brick 1595 C to 1840 C, such as grade LZ-75 brick. In fact, it is impossible to produce a complete phase equilibrium in the process of production, but the glass phase is very small, and there is no more than 10% in the partial gap of the Yu Jing phase
- Q: How much is one ton / ton of high alumina refractory brick?
- The market price of about super high aluminium brick price at 3000 yuan / ton, a high aluminum brick at around 2500 yuan / ton, two high aluminum bricks at around 2100 yuan / ton three grade high alumina bricks at around 1850 yuan / ton for reference, choose to buy the area is not the same as the prices are not the same.
- Q: The difference between ordinary and diatomite brick refractory brick
- To say the difference, the material is the biggest difference. There are diatomite brick density, compressive strength of small brick kiln belongs to the outer thermal insulation, and heavy refractory brick kilns for multi village in direct contact with the flame, high temperature resistance, good compressive strength, but no insulation. Hope to help you.
- Q: What causes breakage of refractory bricks?
- There are many factors that lead to the damage of refractory brick, can be divided into: the chemical loss (e.g. salt penetration, redox phenomenon), heat loss (burning, thermal shock), mechanical loss (kiln deformation, thrust, brick masonry quality etc.).
- 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 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 Fire Brick - Alumina Brick - High Aluminum Brick
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 1000000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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