高铝质耐火泥浆 High alumina refractory mortar理化指标Physico-chemical index| 型号Grade内容Content | LN-55A | LN-55B | LN-65A | LN-65B | LN-75A | LN-75B | LN-85B | GN-85B | | 耐火度Refractoriness ℃ | ≥ | 1770 | 1770 | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 | | 化学成分 % Chem.comp. | Al2O3≥ | 55 | 55 | 65 | 65 | 75 | 75 | 85 | 85 | | 冷态抗折粘结强度Mpa ≥Cold MOR Adhesive Strength | 110℃×24h，干后 drying | 1.0 | 2.0 | 1.0 | 2.0 | 1.0 | 2.0 | 2.0 | 2.0 | | 1400℃×3h，烧后 burnout | 4.0 | 6.0 | 4.0 | 6.0 | 4.0 | 6.0 | — | — | | 1500℃×3h，烧后 burnout | — | 6.0 | 6.0 | | 荷重软化温度（0.2Mpa）℃Refractoriness Under Load | ≥ | — | 1300 | — | 1400 | — | 1400 | — | 1650 | | 线变化率 LC% | 1400℃×3h，烧后 burnout | +1～-5 | +1～-5 | | 1500℃×3h，烧后 burnout | — | +1～-5 | | 粘结时间 Adhesive time | 分钟 Minute | 1～3 | | 粒度（mm）Size% | -1.0 | 100 | | +0.5≤ | 2 | | -0.074≥ | 50 |
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