板状刚玉

板状刚玉基本信息

以优质Al₂O₃粉为主要原料经高温煅烧生产的板状刚玉，具有纯度高、晶体尺寸大、晶内气孔小而分布广、体积密度高、气孔率低等特点。在应用中表现出优良的热震稳定性、很高的强度、良好的流动性，故被广泛用于耐火材料等高温工业。

With high quality Al₂O₃ powder as main raw material and sintered at very high temperature, the tabular alumina is charactorized by its high density, low porosity, high purity, big size of crystallites, numerous micro-sized and closed pores distributed widely in intracrystallines,which endow the tabular alumina with excellent thermal shock resistance,high compression strength and good flowability when used in refractory shaped or unshaped refractories.   

 

化学成份 Chemical composition

Al2O3，%	MgO，%	Na2O，%	Fe2O3，%	磁性物Magnetic matter，%
≥99.2	≤0.09	≤0.4	≤0.1	≤0.02

 

物理性能physical properties

体积密度 Bulk density，g/cm3	气孔率 porosity，%	吸水率 water absorption，%
≥3.5	≤5	≤1.5

常规粒度Normal grain size：10~5mm、5~3mm、3~1mm、1~0mm，200mesh，320mesh，

特殊粒度可根据客户要求定制

Special grain size can be prepared according to customer's requirement.