高爐、熱風(fēng)爐用低蠕變高鋁磚系我廠采用優(yōu)質(zhì)高鋁礬土，添加抗蠕變改性材料經(jīng)高壓成型高溫?zé)缮a(chǎn)的適用于高爐、熱風(fēng)爐爐膛內(nèi)襯的低蠕變耐火材料。
Low creep high-alumina brick whose raw material is excellent high-alumina bauxite and anti-creep modified material is produced by means of high pressure formation and high temperature burning , which can be used as low creep refractory of the inner lining of blast furnace and hot-blast stove .
| 指標/牌號 | 低蠕變高鋁磚 | 復(fù)合莫來石磚 | 堇青石磚 | 低蠕變粘土磚 | 致密粘土磚 |
| H-HD | H-HL | H-LL | H-LLG | H-JL | H-HN | H-LN | H-VN |
| Al2O3 % | 80±5 | 75±5 | 65±5 | 65±5 | 55±5 | 42±5 | 40±5 | 42±5 |
| Fe2O3 % | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.0 | ≤1.5 | ≤1.5 | ≤2.0 | ≤1.5 |
| MgO % | | | | | | ≤2.0 | | |
| 顯氣孔率 % | ≤21 | ≤20 | ≤21 | ≤20 | ≤25 | ≤22 | ≤24 | ≤16 |
| 體積密度
g/cm3 | 2.7 | 2.7 | 2.6 | 2.6 | 2.3 | 2.2 | 2.1 | 2.3 |
| 常溫耐壓強度Mpa | ≥55 | ≥60 | ≥55 | ≥70 | ≥40 | ≥40 | ≥30 | ≥45 |
| 耐火度℃ | ≥1850 | ≥1790 | ≥1790 | ≥1790 | | ≥1750 | ≥1730 | ≥1750 |
| 荷重軟化溫度0.2Mpa ℃ | | ≥1600 | ≥1600 | ≥1600 | ≥1400 | ≥1400 | ≥1350 | ≥1400 |
| 蠕變率%(50h) | 1500℃≤0.8 | 1400℃≤0.6 | 1300℃≤0.8 | | | 1200℃≤1.0 | 1100℃≤1.0 | |
| 熱震穩(wěn)定性次數(shù) | ≥6 | ≥6 | ≥25 | 1200℃≥20 | | | | |
| 熱膨脹率% | | | 1300℃≤0.8 | | | | | |
| 重?zé)�變化率%2h | | 1500℃
±0.1 | 1500℃
±0.1 | | 1450℃
±0.2 | 1450℃
0-0.4 | 1450℃
0-0.3 | 1450℃
0-0.4 |
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