High Alumina refractory fire bricks for kilns
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000 m.t./month
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Products | High Alumina refractory firebricks for furnaces and Kilns |
Applications | furnaces and Kilns |
Features | 1,Good performance of anti alkali erosion resulted from raw material and fuel |
2,Good thermal shock resistance | |
3,High mechanical resistance | |
4,Low porosity | |
5,low thermal conductivity |
Technical Data
Index Products | Spalling Resistant High Alumina Bricks | |
Al2O3 | % | ≥70 |
Fe2o3 | % | / |
Bulk Density | g/cm3 | ≥2.5 |
Apparent Porosity | % | ≥23 |
Refractoriness under Load(0.2MPa) | ℃ | ≥1470 |
Cold Crushing Strength | Mpa | ≥70 |
Thermal Shock(1100℃,water cooling) | times | ≥25 |
Apperance Control Item | Method | Sampling Size | Specification |
1,Crack
| Visual Check | 100% | Crack Width<0.5mm< span=""> Crack length<20mm< span=""> |
2,Chip,Lost corner
| Visual Check | 100% | A+B+C<30mm< span=""> |
3,Lamination | Visual Check | 100% | No Lamination |
4,Spot | Visual Check | 100% | A+B<10mm< span=""> Or <3spot/piece |
5,Fin | Visual Check | 100% | No Fin |
Size &Dimension | |||
1,Shape | ASTM C134 | Follow ISO5022 | Conform to drawing |
2,Dimension
| ASTM C134 | Follow ISO5022 | As size tolerance in drawing For General Brick << span="">100mm drawing±1.5mm >100mm drawing±1.5% For Sk38 Brick All side:drawing ±1mm For Rotary Kiln Brick L,a,b:drawing±1.0mm H:drawing±2.0mm |
3,Squareness | ASTM C134 | Follow ISO5022 | << span="">100mm drawing±1.0mm >100mm drawing±1.0% |
4, Warpage | ASTM C134 | Follow ISO5022 | For General Brick << span="">0.4%from diagonal line For Basic Brick used in Rotary Kiln << span="">0.2%from diagonal line |
5,Slope | ASTM C134 | Follow ISO5022 | Drawing ±1mm |
6,Taper | ASTM C134 | Follow ISO5022 | << span="">1.5mm |
- Q:How to test the aluminium bricks of high alumina refractory bricks?
- Forming high alumina brick will be tested on some professional equipment, it is suggested that you can go to the professional testing department to know about it!
- Q:What is the difference between T3 refractory bricks and high alumina refractory bricks?
- The T3 in T3 refractory bricks refers to the model indicating that the refractory brick model is T-3, and that the corresponding T-3 model is 230*114*65 (mm)
- Q:Corundum, high alumina and fireclay refractory difference is what
- In fact, they are not consistent with raw materials, corundum refractories can use white corundum, white corundum, brown corundum corundum material, alumina content of these materials is higher than 90%, while the high aluminum refractory material is bauxite, alumina in 90 to less than 70, and clay raw materials the aluminum content is less than 70..
- Q:What is the difference between fireclay bricks and high alumina refractory bricks?
- First of all, there is a difference in the material, one is clay, and one is high aluminum.Also known as clay brick brick, is a man-made small bulk building, clay brick clay (including shale, coal gangue powder) as the main raw material, through mud processing, molding, drying and roasting, solid and hollow.
- 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:What are the characteristics of high alumina bricks?
- High thermal stability, fire resistance above 1770. Slag resistance is good, used for masonry steel smelting furnace, glass furnace, cement rotary furnace lining. High R.U.L, low creep high alumina brick with high grade bauxite, fused corundum, fused mullite as main raw material of high-grade refractory materials.
- Q:What's the difference between a well type annealing furnace and a box type annealing furnace?
- 1. The shell of the furnace is welded by section steel and steel plate. 2, the furnace cover support adopts steel and guide rail combination mobile type. 3. The heating element is made of high resistance alloy 0Cr25Al5 produced by Beijing Shougang Group and arranged on the furnace side. 4, because the bottom bearing adopts high aluminum bricks, the circle center of the furnace set small, inside and outside heating. 5 、 furnace cover adopts hydraulic lifting, motor control, automatic walking. 6 、 temperature control system adopts PID SCR control, high accuracy.
- 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: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 are the main components of high alumina bricks?
- Sweat is like water mineral alumina bauxite, aluminum ore, magnesite, waves of gibbsite. Anhydrous alumina raw material, such as corundum, alumina, fused corundum. High alumina brick Zhengzhou gold company specializing in the production of various specifications, you can directly ask their technical staff.
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High Alumina refractory fire bricks for kilns
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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