镁铝尖晶石砖
Magnesium aluminate spinel bricks
镁铝尖晶石砖 是以高纯度镁砂和合成镁铝尖晶石砂为主要原料,主晶相为方镁石相和镁铝尖晶石相。制品具有高温性能好,热震稳定性高,抗碱性物质侵蚀性能强、耐磨性好、抗高温热负荷柔性好的特点。
Magnesium aluminate spinel bricks is made of high purity maanesia and synthetic magnesia spinel sand.The main crystalline phase is magnesite phase and magnesia spinel phase.The product has the characteristics of good high temperature performance, high thermal shock stability, strong resistance to alkaline material erosion,good wear resistance,high temperature thermal load flexibility.
项目
Item
镁铝尖晶石砖
Magnesium aluminate spinel bricks
MA-85A MA-85B
MgO/(%) ≥ 83 80
体积密度/(g/cm³)/(%) ≥ 2.90 2.85
显气孔率/(%)≤ 18 18
常温耐压强度/(Mpa)≥ 50 45
荷重软化温度(T0.6)/(℃)≥ 1700 1650
抗热震性(1100℃~水冷)/(次)≥ 10 10
导热系数(1000℃)(w/m.k) 3.0 3.0
Al₂O₃/(%) ≥ 9 9