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ZHENGZHOU HAIXU ABRASIVES CO.LTD
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Products: white fused alumina|brown fused alumina|green silicon carbide|black silicon carbide|chromite sand/garnet
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tabular alumina 3-5mm
$600.00 /Ton
Stock: 1000000 Tons
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Min Order: 1 piece
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tabular alumina


板状刚玉简介

板状刚玉:是进口氧化铝经配料、粉磨和成型后,在略低于其熔点的超高温条件下烧结完全的再结晶α- Al2O3,板片状晶体结构,气孔小且闭气孔较多而气孔率与电容刚玉大体相当,纯度高,体积稳定性好,极小的重烧收缩,用以生产的耐材或浇注料高温处理后具有较好的热稳定性和抗弯强度。

板状刚玉主要化学成分

1.Al2O3: ≥99.2%

2.Fe2O3: ≤0.05%

3.Na2O: ≤0.4%

4.SiO2: ≤0.1%

板状刚玉主要物理特性

1.堆积密度:3.5g/cm3

2.气孔率:≤5%

3.吸水率:≤1.5%

板状刚玉特性

板状刚玉具有高耐火度、高耐腐蚀、高耐冲刷性和良好的抗热震能力。其晶体呈平板状交错排列,增加了颗粒的机械强度;晶内和晶间以分布均匀的闭气孔为主、体积密度高,显气孔和吸水率低,减少了再制品的用液量;具有高耐火度、良好的热振稳定性、低热收缩率和良好的热负荷强度等优越的物理性能。同时,高纯度避免了杂质对系统的污染,是制作高级耐火材料、陶瓷材料和绝缘材料的理想原材料。

4.板状刚玉应用

板状刚玉是一种理想的耐火材料,既可以作为骨料应用于各种年铝质耐火材料中,也可以添加到其他铝质不定性耐火材料中。应用广泛用于钢铁、铸造、陶瓷等行业,其中钢铁行业的应用几乎涵盖了炼铁炼钢的全过程



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