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白刚玉耐火砂是以优质铝氧化粉为原料，经电熔提炼结晶而成， 纯度高、自锐性好、耐酸碱腐蚀、耐高温、热态性能稳定它硬度略高于棕刚玉，韧性稍低，纯度高、自锐性好、磨削能力强、发热量小、效率高、耐酸碱腐蚀、耐高温热稳定性好。用其制成磨具，适用于磨削高碳钢、高速钢及不锈钢等细粒度磨料还可以用于精密铸造和高级耐火材料。
White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.、
白刚玉耐火砂物理特性Main Physical Properties
|
莫氏硬度MOHS HARDNESS |
9.0 |
|
堆积密度BULK DENSITY |
1.75-1.95g/cm3 |
|
比重SPECIFIC GRAVITY |
3.95g/cm3 |
|
体积密度 |
3.60 |
白刚玉耐火砂化学指标：
|
属性 Properties 规格Type
|
0-1 1-3 3-5m/m |
0-100 0-200 0-320 |
|||
|
保证值 Guarantee Value |
典型值 Typical Value |
保证值 Guarantee Value |
典型值 TypicalValue |
||
|
化学成分 Chemical Composition |
Al2O3 |
≥99 |
99.5 |
≥98.5 |
99.0 |
|
SiO2 |
≤0.1 |
0.06 |
≤0.20 |
0.08 |
|
|
Fe2O3 |
≤0.1 |
0.04 |
≤0.20 |
0.10 |
|
|
Na2O |
≤0.4 |
0.30 |
≤0.40 |
0.35 |
|
工厂图片：
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