高铝砖
该系列产品以特级铝矾土熟料为主要原材料,辅以特殊添加剂,经高压成型、高温烧成,具有蓄热能力大、蠕变率小等特点。适用于中小型高炉配套热风炉。
项目Items |
指标 |
|||
LZ-75 |
LZ-65 |
LZ-55 |
LZ-48 |
|
Al2O3%≥ |
75 |
65 |
55 |
48+ |
常温耐压强度/Mpa ≥CCS Normal temperature compressive strength |
54 |
49 |
44 |
40 |
显气孔率/% ≤apparent porosity |
23 |
23 |
22 |
22 |
荷重软化温度℃ RUL ≥ Load softening temperature |
1520 |
1500 |
1470 |
1420 |
重烧线变化℃(1500℃,2h)Reheating linear change |
+0.1 -0.4 |
+0.1 -0.4 |
+0.1 -0.4 |
+0.1 -0.4(1450℃.2h) |
耐火度/℃ refractor iness ≥ |
1790 |
1790 |
1770 |
1750 |