High-alumina refractory brick, that is, alumina content of more than 48% of the aluminum silicate refractories. Made from bauxite or other raw materials with high alumina content after molding and calcination. High thermal stability and fire resistance above 1770 ℃. The slag resistance is better. One of the important working properties of high alumina refractory brick is the structural strength at high temperature, which is usually evaluated by load softening deformation temperature. The creep property at high temperature is also measured to reflect the strength of the structure at high temperature. The results show that the load softening temperature increases with the increase of Al2O3 content. For high alumina refractory brick with Al2O3 content below 70%, the load softening temperature depends on the ratio of mullite phase to liquid phase, and increases with the increase of mullite content. The amount and properties of the liquid phase have a significant effect on the softening temperature. Therefore, reducing the impurity content in the raw material is beneficial to improve the load softening temperature and the creep property at high temperature.
Anti-Strip Aluminum BrickFeature
Low thermal conductivity
Excellent acid and base slagging resistance
High refractoriness
Excellent thermal shock resistance
Excellent mechanical strength
Anti-Strip Aluminum Brick
Items |
Technical Data |
||||
International code name |
SK35 |
SK36 |
SK37 |
SK38 |
SK40 |
Chinese code name |
LZ-48 |
LZ-55 |
LZ-65 |
LZ-75 |
LZ-80 |
Al2O3 min % |
48 |
55 |
65 |
75 |
80 |
Fe2O3 max % |
2 |
2 |
2 |
2 |
2 |
Refractoriness oC min. |
1750 |
1770 |
1790 |
1790 |
1790 |
Refractoriness under Load C min. |
1420 |
1470 |
1500 |
1520 |
1530 |
Permanent Linear Change % |
1450 C×2h |
1500 C×2h |
1500 C×2h |
1500 C×2h |
1500 C×2h |
+0.1~-0.4 |
+0.1~-0.4 |
+0.1~-0.4 |
+0.1~-0.4 |
+0.1~-0.4 |
|
Apparent Porosity max. % |
22 |
22 |
23 |
23 |
21 |
Cold Crushing Strength mim. |
39 |
44 |
49 |
54 |
65 |
Note :
Size Tolerance : + / - 1.5 % or + / - 2 Mm Which Ever is Greater
Above Specified Values Relate to Machine Pressed Standard Bricks.
P L C Values are for Specimens Heated At Given Temp. for 2 Hours
Production capacity: Our factory actively response to government environmental protection policy, we designed and built the fully automatic controlled high temperature gas tunnel kiln (1700℃), and got capacity of annual output 70,000 tons of high quality refractory products.
Packing details:
★Bricks: Fumigated wooden pallet with log paperboard covered and stainless steel band strapping, the whole outside is wrapped with thermoplastic film. Or carton packaging.
★Wooden pallet size: usually 92*92cm (standard brick)
★Castable: Ton bag with rain film and 25kg bags inside
★Or according to customer’s requirements
Transportation
★Port of dispatch: Tianjin port; Qingdao port
★Delivery time: According to customer’s demand or two sides negotiate
We provide you
★Timely response: Timely response to your inquiry within 24 hours and provide solution.
★Competitive Price: Make the products competitive in your market.
★Free sample: Free sample are offered, trial order are accepted for quality evaluation.
★Strict quality control: We set Quality Management System, from the raw material to finished products, produce high quality products according to chemical & physical specifications strictly to satisfy customers’ needs.
★Fast delivery time: Within 3-30 days according to your quantity after receiving your advance payment.
★ Professional services: Provide pictures from order to delivery. Inspect report by our country’s designated authority and oversea services if necessary.
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Certification: (ISO 9001:2015)
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