耐火陶瓷器具耐火陶瓷件原材料白刚玉 白刚玉0-200目 白刚玉325#
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、磨削能力强、发热量小、效率高、,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精密铸造和**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.
Al2O3≥99.2%
Fe2O3≤0.1%
SiO2≤0.1%
Na2O≤0.3%
堆积密度1.75-1.95g/cm3
颗粒密度≥3.90g/cm3 min
莫氏硬度≥9
显微硬度21600-22600kg/mm3
白刚玉200目-0：
白刚玉0-325目