板狀剛玉是一種純凈的、不添加任何添加劑而燒成收縮徹底的燒結剛玉，具有結晶粗大、發育良好的α- Al2O3晶體結構，Al2O3的含量在99%以上。呈板片狀晶體結構，氣孔小且閉氣孔較多，而氣孔率與電熔剛玉大體相當，純度高，體積穩定性好，極小的重燒收縮，高耐火度，高耐腐性，高耐沖刷性，高耐熱震穩定性，強度高韌性好，化學性能穩定，主要應用于中高檔耐火材料，用以生產的耐材或澆注料高溫處理后具有良好的熱震穩定性和抗彎強度。
Tabular corundum is the purified sintered corundum without any additives with the large crystallization and good α- Al2O3 crystal texture. (over 90% Al2O3 content). With the characteristics of high purity, good bulk stability, small reheat shrinkage, high refractoriness, high decay resistance, high washing resistance, high thermal shock stability, high strength, good toughness, stable chemical prosperities, it is mainly applied in medium and high-class refractory materials. The made refractory products and castables have the good thermal shock stability and bending strength after high temperature processing.
板狀剛玉理化指標指標：Physical and Chemical Indexes
| 化學成分chemical composition | Al2O3% | SiO2% | Fe2O3% | Na2O% | 體積密度bulk density (g/cm3) |
| 板狀剛玉骨料aggregates | ≥99.0% | ≤0.1 | ≤0.1 | ≤0.35 | 3.50 |
| 板狀剛玉細粉fine powder | ≥98.5% | ≤0.1 | ≤0.15 | ≤0.35 | —— |
可為客戶提供段砂：0-1mm、1-3mm、3-5mm、5-8mm等，細粉：180#-0、240#-0、320#-0等，也可按客戶要求提供其他規格。
We can supply size sand: 0-1mm,1-3mm,3-5mm,5-8mm etc, fine powder: 180#-0、240#-0、320#-0 etc, and other specifications as per the customer’s demand.
