High Alumina Brick for Blast Furnaces
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- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 4 m.t.
- Supply Capability:
- 10000 m.t./month
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High Alumina Bricks for Blast Furnaces
Composite of High Alumina Bricks for Blast Furnaces
High Alumina Bricks are classified according to alumina content ranging from 48% to 90%.
Main Features of High Alumina Bricks for Blast Furnaces
Low thermal conductivity
Excellent acid and base slagging resistance
Excellent thermal shock resistance
Excellent mechanical strength
Acid and alkali resistant
High tensile strength
Resilient to thermal shock
Corrosion resistance
Wear and erosion resistant
Application of High Alumina Bricks for Blast Furnaces
commonly used in blast furnace, hot blast furnace, the roof of electric furnace, teeming ladle, rotary kiln, regenerator, etc
High Alumina Bricks for Blast Furnaces Images
Specification of High Alumina Bricks for Blast Furnaces
HIGH ALUMINA BRICK---ALP85 | |
Apparent Porosity (%) | ≤18 |
Bulk Density (g/cm3) | ≥2.85 |
Cold Crushing Strength (Mpa) | ≥80 |
Modulus Of Rupture (Mpa) | ≥20 |
Refractoriness Under Load (0.2 Mpa)(℃) | 1450 |
Permanent Linear Change (%) | 1500℃×3h -0.5 ~+0.5 |
Chemical Composition (%) |
|
Al2O3 | ≥82 |
Fe2O3 | ≤1.5 |
P2O5 | ≤3 |
FAQ of High Alumina Bricks for Blast Furnaces
Q1:Are you a manufacture or trader?
A:Factory+trade(mainly factories, at the same time, we operates other related products).
Q2:Can we visit your factory?
A:Sure,welcome at any time, seeing is believing.
Q3:What's the MOQ of trial order?
A:No limit, We can offer the best suggestions and solutions according to your condition.
Q4:Which payment terms can you accept?
A:T/T,L/C are available for us.
Q5:After an order is confirmed, when to deliver?
A:15-25days after deposit.
Q6:Is your company accept customization?
A:We have own factory and excellent technical team, and we accept OEM service.
Q7:How about your company's certification?
A:ISO9001 and Test Report, also we could apply other necessary certification.
Q8:How to solve the quality problems?
A:If the products are not confirmed to customer samples or have quality problems, our company will be responsible to make compensation for it.
Q9:Can you offers samples?
A:Of course, samples are free but freight paid by the buyers.
Q10:What is the service life of your bricks?
A:The service life of different bricks is unlike. It also depends on your using condition and method.
- Q: How much is the bending temperature aluminum silicon carbide brick for torpedo car
- The product has the advantages of high temperature, little creep, strong corrosion resistance and good thermal shock resistance, and is suitable for large and medium-sized hot blast stoves.
- Q: What's the difference between high alumina refractory bricks and high alumina refractory bricks?
- The chemical pH value of high alumina refractory brick belongs to neutral and alkaline refractory brick, and clay refractory brick belongs to neutral and acid refractory brick.
- Q: What is the standard size of high alumina brick?
- Standard brick: 230 x 115 x 65; four points: 230 x 115 x 40; three points: 230 x 115 x 30; 150 x 120: Brick gable. Light weight brick 1 to 1.7 kilograms; heavy clay superscript brick weighs 3.75 kilograms; light 30 plates 0.79 kilograms; light 40 plates, 1.05 kilograms.
- Q: How to make refractory bricks and boiler wall adhesion more firm?
- If the condition, the user heat-resistant steel welding grip nails, expansion joints can not be too big.. Also to use high temperature aluminum brick, high temperature resistance, but also to extend its use cycle.
- 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: What's the weight of the refractory bricks?
- According to shape and size can be divided into standard brick, ordinary brick, special brick, etc.. It can be used as high temperature building materials and structural materials for construction kilns and various thermal equipments, and can undergo various physical, chemical and mechanical changes at high temperature. For example, refractory clay brick, high alumina brick, brick, brick etc..
- 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: Use of high alumina refractory bricks?
- High alumina refractory brick in Al2O3 more, close to neutral refractory material, can resist acid slag and alkaline slag erosion, because it contains SiO2, so alkaline slag ability than acid resistance slag ability less.It is widely used in building blast furnace, hot blast furnace, furnace top, blast furnace, reverberatory furnace and rotary kiln lining. In addition, high alumina bricks are widely used as furnace regenerative checker, pouring system for plug nozzle, etc..
- Q: What is the difference between fireclay bricks and high alumina refractory 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. High thermal stability, fire resistance above 1770. Slag resistance is good, used for masonry steel smelting furnace, glass furnace, cement rotary furnace lining.
- Q: High alumina brick 80 with which high aluminum cement?
- Which kind should be chosen should be determined according to the conditions of use, life expectancy and cost control. By the way, the quality of masonry is also very influential.
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High Alumina Brick for Blast Furnaces
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 4 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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