P砂主要用于涂覆磨具，其砂粒形状多锐角针状，堆积密度相对较低，其粒度分布较为集中
F砂用于固结磨具，砂粒形状为颗粒状或所谓宝石状，堆积密度高
白刚玉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.
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属性properties
规格Type |
粒度砂Grains |
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8# 10# 12# 14# 16# 20# 22# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220# |
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保证值 Guarantee Value |
典型值Typical Value |
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化学成分 Chemical Composition |
Al2O3 |
≥99 |
99.50 |
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SiO2 |
≤0.2 |
0.04 |
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Fe2O3 |
≤0.2 |
0.04 |
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Na2O |
≤0.30 |
0.23 |
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