采用優質氧化鋁原料，精選優質粘土，添加多種改性添加劑，經半干法或擠壓成型工藝生產而成的高檔高鋁輕質磚，可用于乙烯裂解爐爐墻及各種工業窯爐直接接觸火焰的部位，具有重燒線變化小，導熱系數低、熱穩定性好等優點。
High grade high-alumina heat insulation refractory
High grade high-alumina heat insulation refractory brick whose raw material is exxcllent high –alumina ,high qualified clay and various modified addition agent is produced by means og semi-dry method and pressing formation ,which has comparatively low reheating linear change ,comparatively low thermal conductivity and excellent heat stability .This product can be used as furnace wall of ethylene craceing furnace and touch fire directly in various industrial kilns &furmaces .
| 項目 | 性能指標 |
| HQ-0.5 | HQ-0.6 | HQ-0.7 | HQ-0.8 | HQ-0.9 | HQ-1.0 |
| Al2O3含量%不小于 | 40 | 45 | 48 | 60 | 65 | 70 |
| Fe2O3含量%不大于 | 1.0 | 1.0 | 1.0 | 0.8 | 0.8 | 0.9 |
| 體積密度g/cm3 | 0.5±0.05 | 0.6±0.05 | 0.7±0.05 | 0.8±0.05 | 0.9±0.05 | 1.0±0.05 |
| 常溫耐壓強度Mpa 不小于 | 1.2 | 1.5 | 1.6 | 2.0 | 2.5 | 3.0 |
| 常溫抗折強度Mpa 不小于 | 0.8 | 1.0 | 1.1 | 1.5 | 2.0 | 2.4 |
| 重燒線編號不大于0.5%的試驗溫度℃ | 1260 | 1300 | 1400 | 1450 | 1510 | 1550 |
| 熱震穩定性(1000℃空冷)次不小于 | 20 | 20 | 20 | 20 | 20 | 20 |
導熱系數 W/m.k
不大于 | 260℃ | 0.14 | 0.15 | 0.17 | 0.25 | 0.28 | 0.38 |
| 400℃ | 0.16 | 0.17 | 0.20 | 0.27 | 0.32 | 0.41 |
| 600℃ | 0.18 | 0.19 | 0.22 | 0.30 | 0.35 | 0.43 |
| 800℃ | 0.20 | 0.21 | 0.25 | 0.33 | 0.37 | 0.46 |
乙烯裂解爐用輕質耐火磚配套膠泥
| 牌號 | 使用溫度℃ | 升溫干燥時間 | 所用材質 | 粘結抗折強度Mpa | 備注 |
| 110℃ | 1300℃ |
| PAQ-65 | 1550 | 300℃小時 | 高鋁質 | ≥1.0 | ≥4.0 | 適用于HQ-0.9輕質磚 |
| PAQ-55 | 1400 | 300℃小時 | 高鋁質 | ≥1.5 | ≥4.0 | 適用于HQ-0.8輕質磚 |
| PAQ-40 | 1250 | 300℃小時 | 粘土質 | ≥1.0 | ≥3.0 | 適用于HQ-0.5輕質磚 |
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