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高铝质耐火泥浆
项目 | LN-55A | LN-55B | LN-65A | LN-65B | LN-75A | LN-75B | LN-85B | GN-85B | |||
耐火度,℃ 不低于 | 1770 | 1770 | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 | |||
Al2o3, % 不小于 | 55 | 55 | 65 | 65 | 75 | 75 | 85 | 85 | |||
冷态抗折强度,mpa不小于 | 110℃干燥后 | 1.0 | 2.0 | 1.0 | 2.0 | 1.0 | 2.0 | 2.0 | 2.0 | ||
1400℃x3h | 4.0 | 6.0 | 4.0 | 6.0 | 4.0 | 6.0 | |||||
1500℃x3h | 6.0 | 6.0 | |||||||||
荷重软化温度 2.0% 不低于 | 1300 | 1400 | 1400 | 1650 | |||||||
线变化率% | 1400℃x3烧后 | 1—-5 | |||||||||
1500℃x3h烧后 | 1—-5 | ||||||||||
粘结时间 min | 1-3 | ||||||||||
粘度 % | -1.0mm | 100 | |||||||||
0.5mm 不大于 | 2 | ||||||||||
-0.074 不小于 | 50 | 40 |
Note: A is ordinary high aluminum refractory slurry, B for phosphate combined with high aluminum refractory mortar