海旭磨料325目白刚玉细粉
95%通过率涂料塗模劑原料325#白刚玉细粉
白刚玉是以铝氧化粉为原料，经电熔提炼结晶而成， 纯度高、自锐性好、耐酸碱腐蚀、耐高温、磨削能力强、发热量小热态性能稳定它硬度略高于棕刚玉，韧性稍低。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铸造和耐火材料。
White fused alumina waade 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 hiulk density and low porosity and the volume stability and thermal shock resistance can be improved.
主要物理特性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 |
3.95g/cm3 |
|
体积密度 |
3.60 |
用于耐火材料，捣杂料，炉料，涂料等Used for refractory, castable
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属性 Properties 规格Type
|
0-1 1-3 3-5mm |
0-100 0-200 0-320 |
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保证值 Guarantee Value |
典型值 Typical Value |
保证值 Guarantee Value |
典型值 Typical Value |
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化学成分 Chemical Comition |
Al2O3 |
≥99.2 |
99.5 |
≥99 |
99.2 |
|
SiO2 |
≤0.1 |
0.06 |
≤0.30 |
0.08 |
|
|
Fe2O3 |
≤0.1 |
0.04 |
≤0.20 |
0.10 |
|
|
Na2O |
≤0.4 |
0.30 |
≤0.40 |
0.35 |
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