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hollow alumina sphere bricks
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Product Details
| Place of Origin | Shandong, China | Shape | Brick | |
| Material | Other, Alumina hollow ball, fused corundum powder | SiO2 Content (%) | 1.0-15 | |
| Model Number | MLQ84 MLQ90 LQ-1.2 LQ-1.5 LQ-1.7 LQ-2.0 | |||
| Brand Name | Leibao |
Product Description
Specifications
high temperature sintering. high temperature resistance, low thermal conductivity, good thermal insulation
Hollow Alumina Sphere Bricks ( bubble alumina brick)
Hollow alumina sphere bricks use the hollow alumina sphere(bubble alumina) ,corundum powder, Calcined powder asraw material, through Homogenization, molding, high temperature sintering. high temperature resistance, low thermal conductivity, good thermal insulation, good chemical stability (acid-base erosion resistance ), low bulk density (lighter than the same kind of material ,thin kiln wall, low cost ) .widely usedin inner linings of various non-contacted melt high temperature kiln and thermal insulating layers of high temperature kilns.
Physical and Chemical Indexes of Hollow Alumina Sphere Bricks | |||||
Name / Indexes/ Item | MLQ-1.5 | LQ-1.2 | LQ-1.5 | LQ-1.7 | |
Chemical composition | Al2O3 % ≥ | 84 | 98.5 | 98.5 | 98.5 |
Fe2O3 % ≤ | 0.8 | 0.3 | 0.3 | 0.3 | |
SiO2 % ≤ | 15 | 1.0 | 1.0 | 1.0 | |
Bulk density g/m3≤ | 1.5 | 1.2 | 1.5 | 1.7 | |
Compressive strength at normal temperature MPa≥ | 16 | 3 | 12 | 15 | |
Porosity % ≥ | 58 | 62 | 60 | 58 | |
Refractoriness Under load0.1MPa KD°C≥ | 1650 | 1650 | 1700 | 1700 | |
Fire resistant (°C)≥ | 1800 | 1800 | 1800 | 1800 | |
Thermal conductivity | 1.2 | 0.95 | 1.05 | 1.15 | |
Widely used in inner lining of various non-contacted melt high temperature kiln and thermal insulating layers of high temperture kilns .
Contact Us
- Shandong Leibao Zirconium Sci&Tech Co.,Ltd.
- Contact nameLeo Wang Chat Now
- Phone86-533-2184798
- AddressLijiatuan Village, Wangcun Town, Zhoucun District, Zibo, Shandong
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