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1,Description of Alumina Hollow Ball Insulation Brick:
The Alumina Hollow Ball Insulation Brick made of fine ethylene ball as fillers is used as the working lining in the ultra-high temperature industrial furnace. The content of Al2O3 is over 95%, the high temperature resistance is over 1700℃, the product density is low, the thermal conductivity is good and the purity is high.It can be directly used as the lining of high-temperature furnace and directly contact with the flame. It is the product with the highest temperature resistance among the insulating refractory bricks. Its mechanical strength and physical properties under high temperature are superior to other insulating refractory bricks. Building a layer of alumina hollow ball thermal insulation bricks completely replaces the design scheme of building a layer of heavy refractory bricks and a layer of thermal insulation refractory bricks, which not only reduces the load of the furnace, but also improves the energy saving effect. The energy saving can reach about 40%, greatly reducing the cost.
2,Index of Alumina Hollow Ball Insulation Brick
Item | JXL-1.4 | JXL-1.5 | JXL-1.6 |
Al2O3 % | 88 | 90 | 98-99 |
Fe2O3 % | 0.4 | 0.4 | ≤0.15% |
Bulk density g/cm3 | 1.4 | 1.5 | 1.6-1.7 |
Cold crushing strength Mpa | 7 | 8 | ≥10 |
Linear change rate after burned 1100℃×3h % | ＜-0.2 | ＜-0.2 | ＜-0.1 |
Heat conductivity W/m·K | 400℃ 0.7 800℃ 0.75 1200℃ 0.86 | 400℃ 0.75 800℃ 0.83 1200℃ 0.92 | 800℃ 0.976 1200℃ 1.134 1600℃ 1.168 |
| Maximum working temperature ℃ | 1500 | 1600 | 1800 |
3,Alumina Hollow Ball Insulation Brick knowledge:
The product is a new type of high temperature insulation material, which is made by melting and blowing industrial alumina in electric furnace. Its crystal form is a-Al2O3 microcrystal.alumina hollow spheres are the main heat insulating products,The maximum temperature can reach 1800℃.the mechanical strength of the product is high, which is several times as high as that of the general lightweight product,but the density is only one-half of that of corundum insulation products,It has been widely used in industrial vaporization furnaces, carbon black industrial reaction furnaces, induction furnaces in metallurgical industry and ultra-high temperature kilns, and achieved satisfactory energy-saving results.The product has obvious thermal insulation characteristics, reduces heat emission, improves thermal efficiency, and saves energy by more than 30%.
4,Product salient features:
1),Good performance at high temperature, low down-line change rate at high temperature, stable overall performance at high temperature, the maximum operating temperature can reach 1800℃.
2),High mechanical strength,7-8 Mpa,3-4 times as high as general insulation products
3),High purity, Fe2O3 + and other impurities≤ 0.5%
4),The product has many specifications and shapes, which can be made arbitrarily according to users.
5,Product packaging:
in order to ensure that every product is in good condition during transportation,white foam is used between each brick and each layer of brick to prevent friction and vibration during transportation.
6.Good feedback of product use effect,the products have been exported to Russia, Australia, Oman
7.The manufacturer is a professional manufacturer and can provide complete product index test reports or third-party test reports.
Do you want to find a professional supplier of refractory products?
Do you want to find a stable and credible supplier?
Then please contact with us
Contact me:Email:wp@cnjingganrefractory.com/sdwenping@163.com
TEL: 86-0533-4188518 / FAX: 86-0533-4188518
Rose:+86-13275332819(wechat/whatsapp number)
The company has a good heritage, strives to innovate, and fully considers the market needs of Standard Hollow for Kiln Hot Blast Furnace Insulating Alumina Refractory Bubble Brick thoughout its many years of business. We always adhere to the path of becoming bigger and stronger, advancing with the times, and enhance the core competitiveness of our products. We would like to contribute to the society by designing and producing high quality products with strict requirements of global standards.
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