高铝砖


 


炭素焙烧炉用高铝砖
项目及名称
特种高铝砖
 Al2O3                                                  %
≥65
 Fe2O3                                                  %
≤1.2
 K2O+Na2O                                               %
≤0.8
 CaO+MgO                                                %
≤0.7
 耐火度Refractoriness                                   ℃
≥1790
 荷重软化点                                             ℃
≥1600
 显气孔率                                               %
≤16
 常温耐压强度 CCS                                      MPa
≥55
 重烧线变化(1500℃×2h)LCR                             %
+0.1~-0.3
 高温抗折强度(1350℃×30min)MOR                       MPa
≥6.0
 高温蠕变率(0.2MPa,1280℃×25h)                       %
≤0.4