Briques légères à haute teneur en alumine
Refractoriness (Degree): Common (1580 degree
Lightweight high alumina bricks usually refers to lightweight refractory products which contains at least 45 percent of Al2O3. Lightweight high alumina bricks are classified into two categories: one is ordinary light high alumina brick which adopts natural high alumina bauxite clinker as raw material, the other is premium lightweight high alumina brick which adopts fused or sintered Al2O3 as raw material, as its principal crystalline phase is corundum, it is also called lightweight corundum brick.
| QLZ{{0}}.0 | QLZ-0.9 | QLZ-0.8 | QLZ-0.7 | QLZ-0.6 | QLZ-0.4 | |
| Al2O3 percent | Greater than or equal to 48 | |||||
| Fe2O3 percent | Less than or equal to 2.0 | |||||
| Bulk density g/cm3 Less than or equal to | 1 | 0.9 | 0.8 | 0.7 | 0.6 | 0.4 |
| 3.9 | 3.4 | 2.9 | 2.5 | 2 | 0.8 | |
| 0.5 | 0.45 | 0.35 | 0.35 | 0.3 | 0.2 | |
Usually used production method of lightweight high alumina brick is foaming method. Grinded high alumina clinker, binders(such as chamotte) and foaming agent are proportionally mixed to prepare slurry, then green lightweight high alumina bricks are produced by casting method, and sintered at 1350~1500 degree high temperature.
The bulk density of lightweight high alumina brick is between {{0}}.4~1.35g/cm3, porosity is between 66 percent ~73 percent . Crushing strength is between 1.3~8.1Mpa, thermal conductivity is between 0.291~0.582W/(m·K)(350 degree ). Lightweight high alumina brick has high refractoriness, good thermal shock resistance and so on.
Lightweight high alumina bricks are usually used as high temperature insulating lining of industrial kilns and furnaces. High quality lightweight high alumina bricks can be directly used in working lining of industrial kilns, where contact with flame directly. But light high alumina brick is not suitable in places where molten slag corrosion exist. As lightweight high alumina bricks has good chemical stability at reduction atmosphere, so light high alumina bricks are usually used as insulating lining of kilns and furnaces which adopt H2 or CO as protection atmosphere.
The photos were taken in 2023,People from our ZhenAn company are participating in activities with colleagues who belong to GNEE.
Light Weight High Alumina Bricks are a solution for high-temperature industrial applications requiring exceptional thermal resistance and reduced structural load. Our commitment to quality, customization, and excellent customer service ensures that our customers receive the best refractory solutions for their unique industrial needs, contributing to energy savings and improved efficiency in various high-temperature processes.
A: Our company has strong strength, stable and long-term ability to meet various needs of customers.
At present, ZhenAn's has an annual output of 80,000 tons of shaped refractory production lines and an annual output of 50,000 tons of unshaped refractory production lines, all of which are fully automatic and intelligent production lines.
Now our company has a production line for shaped products, a production line for unshaped refractory materials, a production workshop for assembly of composite bricks, and a production line for acid and alkali resistant and anti-corrosion materials; the plant covers an area of about 16,000 square meters.
étiquette à chaud: , Brique d'alumine élevée résistante à l'abrasion, brique réfractaire pour le four, brique réfractaire pour le four à haute performance, brique réfractaire pour le four à service léger, Brique de brique réfractaire, Briques de briques en zircone pour la fournaise
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