120目 150目 180目白刚玉喷砂研磨材料

白刚玉(white fused alumina) 

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.

Al2O3

≥99.55%

Fe2O3

≤0.04%

SiO2

≤0.04

Na2O

≤0.22%

堆积密度（Bulk density）

1.75-1.95g/cm3

颗粒密度（Grain density）

≥3.90g/cm3 min

莫氏硬度（Morse hardness）

≥9

用途(Usage)

其适用于磨削高碳钢、高速钢和淬火钢等硬度较硬、抗张强度较大的材料的磨削。等。还可作为研磨；精密铸造、喷涂材料，化工触媒载体，特种陶瓷、，炼钢，高级耐火材料等。它的特点是切削力较强，化学稳定性好，具有很好的绝缘性

Refractory material; polishing material; Casting; Painting material; Grinding material; Sandblasting material,etc