Alumina Bubble Brick
Alumina bubble brick adopt alumina bubble ball as the main raw materials, high-performance ultrafine powder as the annexing agent and organic substance as the binding agent through molding and drying, and then are fired in the high temperature shuttle kiln.
1.Low thermal conductivity, good thermal insulation effect
2.Refractoriness is as high as 1750 ℃
3.It can be processed into special shape to reduce the number of bricks and joints
4.Good thermal shock resistance
5.Low reheating linear change
Alumina Bubble Brick Description
Alumina bubble brick crystal form is a-Al2O3 microcrystal and main body is alumina bubble that can be made to be all kinds of products with various shapes for serving the highest temperature of 1800℃.Alumina bubble brick is a kind of very important refractory material for resisting high temperature and special demands of positions for furnace and kiln. It is in high-purity quartz for the electronics industry such as ceramic tile linings in gas turbines and backup linings in reactors.
The Application Of Alumina Bubble Brick
Alumina bubble brick mainly used as working linings or insulating linings for high temperature kilns in ceramic, electric porcelain, abrasive and refractories industries, the inner lining of silicon stell heating furnaces in metallurgical industry.
Alumina bubble brick are widely used in the high temperature kilns of metallurgy industry, and chemical engineering industry, glass industry, or ceramics industry etc. And also alumina bubble brickare working lining of hydrogen generation furnace.
Alumina bubble brick is mostly used as insulating brick for insulation layer of furnace and kiln, can be used for service linings in manufacturing, gasifier in petrochemical industry, insulating lining of hard alloy intermediate frequency induction furnace.
- Technical Sheet
- Production Process
- Packing & Shipping
| Properties / Brand | LG-99 | LG-90 | LG-85 | |
| Bulk Density(g/m3) | 1.45-1.60 | 1.45-1.60 | 1.45-1.60 | |
| Cold Crushing Strength (MPa) | ≥15 | ≥15 | ≥20 | |
| @1600℃ Permanent Linear Change(%) | 0.2 | 0.2 | 0.3 | |
| @800℃ Thermal conductivity(W/m.k) | ≤1.4 | ≤1.4 | ≤1.4 | |
| Maximum Service Temperature | ≥1800 | ≥1700 | ≥1600 | |
|
Chemical Composition
|
Al2O3 | ≥99 | ≥90 | ≥85 |
| SiO2 | ≤0.3 | ≤7 | ≤13 | |
| Fe2O3 | ≤0.1 | ≤0.1 | ≤0.2 | |


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More Information About Jucos Alumina Bubble Brick
JUCOS providing high grade alumina bubble brick and monolithic refractories to globe industrial high temperature furnace. Focus on refractory material selection,technical solutions,supplying,repairing,construction.
China leading refractory supplier with competitive price and reliable quality.
A1:Alumina bubble brick using alumina hollow ball as main raw material, high performance alumina ultrafine powder as additive, organic matter do binder, forming after drying, alumina hollow ball fired at 1750℃.
A2:Alumina bubble brick with low thermal conductivity, heat preservation, high compressive strength. Alumina bubble brick has excellent heat resistance performance and heat insulation performance.
A3:Alumina bubble brick crystal form is a-Al2O3 microcrystal, adopt alumina bubble ball as the main raw materials.
A4:Alumina bubble brick is used in reheating furnace, blast furance, petrochemical furance and general industry furance etc.
A5:Yes, surely. You are very welcome to China and we will be honored to have a customer and friend.















