Alumina Bubble Bricks
Product Information
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Product Name
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Alumina Hollow Ball Bricks/Alumina Bubble Bricks
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Description
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Alumina hollow ball bricks are made of alumina hollow ball and alumina powder as the main raw material, combined with other binder, after 1750 degrees high temperature firing, belongs to a kind of ultra-high temperature and energy-saving insulation material.
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Model
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RBTHB-85/90/98/99
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Size
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Standard size: 230 x 114 x 65 mm, special size and OEM service also provide!
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Features
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Product contains a large number of closed porosity, thus it has high strength and stability of porosity structure, low density, good thermal shock resistance and small change of permanent linear, low thermal conductivity.
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Details Images
Standard Bricks
Shaped Bricks
Standard Bricks
Shaped Bricks
Product Index
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INDEX
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RBTHB-85
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RBTHB-90
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RBTHB-98
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RBTHB-99
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Max Service Temperature(℃)
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1750
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1800
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1800
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1800
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Bulk Density(g/cm3) ≥
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1.4~1.9
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1.4~1.9
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1.4~1.9
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1.5~2.0
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Cold Crushing Strength(MPa) ≥
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10
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10
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11
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12
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Permanent Linear Change@1600℃×3h (%)
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±0.3
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±0.3
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±0.3
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±0.3
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Thermal Conductivity(W/m.k)
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0.30
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0.35
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0.50
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0.50
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Al2O3(%) ≥
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85
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90
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98
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99
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Fe2O3(%) ≤
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0.5
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0.2
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0.1
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0.1
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ZrO2(%) ≥
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―
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―
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―
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―
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Application
Mainly used in the gasifier reactor of petrochemical industry, carbon black industry , induction furnace of metallurgical industry, down-draft kiln, shuttle kiln, molybdenum wire furnace, tungsten rod furnace, induction furnace, nitrogenation oven, and other high temperature, super high temperature furnaces.
Petrochemical Industry
Carbon Black Industry
Metallurgical Industry
Chemical Industry
Package&Warehouse
Frequently Asked Questions
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We are a real manufacturer, our factory is specialized in producing refractory materials for more than 30 years. We promise to provide the best price, the best pre-sale and after-sale service.
For each production process, RBT has a complete QC system for chemical composition and physical properties. And we will test the goods, and the quality certificate will be shipped with the goods. If you have special requirements, we will try our best to accommodate them.
Depending on the quantity, our delivery time is different. But we promise to ship as soon as possible with guaranteed quality.
Of course, we provide free samples.
Yes, of course, you are welcome to visit RBT company and our products.
There is no limit, we can provide the best suggestion and solution according to your situation.
We have been making refractory materials for more than 30 years, we have strong technical support and rich experience, we can help customers design different kilns and provide one-stop service.
