Various sizes hollow alumina ball use for high temperature light refractory castable
Product Description
Alumina hollow ball is a new high-temperature insulation material,which is used in industrial electric furnace smelting of alumina-blown,crystal micro-crystals of a-AL2O3.Fused Alumina/Corundum Hollow Sphere Ball as the main body,can be made into various shapes products. It can be used as refractory material.Feature
Small volume density
Product has high mechanical strength
Thermal conductivity is low
Excellent resistance to high temperature up to 1800°C
Product
Physical and chemical indicators
Chemical index | |||||||
Size | AL2O3 | Fe2O3 | SiO2 | Na2O | MgO | ||
0.2-5MM | ≥99% | ≤0.15% | ≤0.3% | ≤0.5% | ≤0.1% | ||
Physical index | |||||||
Bulk density | Refractory temperature | Appearance | |||||
0.5-1g/cm3 | 1800°C | White hollow ball | |||||
Type
Mixed ball | 0.2-5mm |
Graded ball | 0.2-0.5mm,0.5-1mm,0.2-1mm,1-2mm,2-3mm,3-5mm |
Shipping&Packaging
Application
1. High temperature refractory materials
2. High temperature refractory concrete lightweight aggregate
3. Alumina hollow ball refractory brick
4. Ruduce the weight of the furnace,transform the structure
Certificate
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