采用優(yōu)質(zhì)氧化鋁原料，精選優(yōu)質(zhì)粘土，添加多種改性添加劑，經(jīng)半干法或擠壓成型工藝生產(chǎn)而成的高檔高鋁輕質(zhì)磚，可用于乙烯裂解爐爐墻及各種工業(yè)窯爐直接接觸火焰的部位，具有重?zé)�變化小，導(dǎo)熱系數(shù)低、熱穩(wěn)定性好等優(yōu)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(biāo) |
| 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?zé)�編號不大于0.5%的試驗溫度℃ | 1260 | 1300 | 1400 | 1450 | 1510 | 1550 |
| 熱震穩(wěn)定性(1000℃空冷)次不小于 | 20 | 20 | 20 | 20 | 20 | 20 |
導(dǎo)熱系數(shù) 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(zhì)耐火磚配套膠泥
| 牌號 | 使用溫度℃ | 升溫干燥時間 | 所用材質(zhì) | 粘結(jié)抗折強度Mpa | 備注 |
| 110℃ | 1300℃ |
| PAQ-65 | 1550 | 300℃小時 | 高鋁質(zhì) | ≥1.0 | ≥4.0 | 適用于HQ-0.9輕質(zhì)磚 |
| PAQ-55 | 1400 | 300℃小時 | 高鋁質(zhì) | ≥1.5 | ≥4.0 | 適用于HQ-0.8輕質(zhì)磚 |
| PAQ-40 | 1250 | 300℃小時 | 粘土質(zhì) | ≥1.0 | ≥3.0 | 適用于HQ-0.5輕質(zhì)磚 |
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