氧化鋁球/氧化鋁陶瓷球
氧化鋁空心球( alumina bubble balls )
氧化鋁空心球是一種新型的高溫隔熱材料,它是用工業(yè)氧化鋁在電爐中熔煉吹制而成的,晶型為a-Al2O3微晶體。以氧化鋁空心球為主體,可制成各種規(guī)格耐火輕質品,使用溫度達1800℃,機械強度高,導熱系數低,各種氣氛下性能穩(wěn)定。在石化工業(yè)氣化爐、炭黑工業(yè)反應爐、冶金工業(yè)感應電爐等高溫、超高溫窯爐上得到廣泛應用,取得了十分滿意的節(jié)能效果。
Alumina bubble balls is a new type of high-temperature insulation material. It is made of commercial alumina through melting and blowing in an electric furnace. Its crystallographic form is a-Al2O3 micro-crystal. Taking alumina hollow ball as the main material, a variety of fire-resistant and lightweight products can be made. It’s highest service temperature can be reached to 1800℃, with high mechanical strength, low thermal conductivity, and has stable performance in various atmospheres. The gasifier reactor, carbon black industry in the petrochemical industry, metallurgical industry, induction furnace, such as high temperature, super high temperature kiln is widely used, has obtained the energy saving effect is very satisfied.
化學成分Chemical compositions |
指標 Quota |
典型值Typical value |
Al2O3 |
≥99.0 |
≥99.3 |
SiO2 |
≤0.3 |
≤0.03 |
Fe2O3 |
≤0.15 |
≤0.016 |
Na2O |
≤0.5 |
≤0.06 |
堆積密度 Packing Density(g/cm3) |
0.6-1.0 |
0.5-0.95 |
耐火度 Refractoriness(℃) |
1800 |
|
顆粒尺寸 Particle Size (Фmm) |
0.2-1,0.5-1,1-3,2-3,3-4,5-8 |
堆積密度Packing Density
顆粒尺寸 Particle Size |
5-3mm |
4-3mm |
3-2mm |
2-1mm |
1-0.5mm |
0.5-0.2mm |
g/cm3 |
0.5 |
0.55 |
0.65 |
0.75 |
0.95 |
0.97 |
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