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中间包工作层干性料为MgO质及MgO-CaO质两种系列,产品不含硫、磷等污染钢水的有害物质,在施工过程中不需加水,因而具有耐腐蚀、抗冲刷、净化钢水、使用寿命长、用后易脱包等优点。
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牌号
指标 |
MD-1 |
MD-2 |
MD-3 |
MD-4 |
MD-5 |
MD-6 |
| MgO(%) |
>88 |
>85 |
>85 |
>78 |
>70 |
>60 |
| CaO(%) |
≤3.0 |
≤3.0 |
≤3.0 |
≤15 |
≤20 |
≤30 |
| SiO(%) |
≤2.0 |
≤2.2 |
≤2.5 |
≤3.0 |
≤3.0 |
≤3.0 |
| 150℃*3h B.D(g/c㎡) |
≥2.4 |
≥2.2 |
≥2.0 |
≥2.1 |
≥2.0 |
≥2.0 |
| 150℃*3h 抗折(MPa) |
≥8.0 |
≥5.0 |
≥4.0 |
≥3.0 |
≥3.0 |
≥3.0 |
| 150℃*3h 耐压(MPa) |
≥16.0 |
≥12.0 |
≥9.0 |
≥5.0 |
≥5.0 |
≥5.0 |
| 1100℃*3h B.D(g/c㎡) |
≥2.0 |
≥2.0 |
≥1.9 |
≥2.0 |
≥1.8 |
≥1.8 |
| 1100℃*3h 抗折(MPa) |
≥1.8 |
≥1.5 |
≥1.5 |
≥1.5 |
≥1.5 |
≥1.5 |
| 1100℃*3h 耐压(MPa) |
≥4.0 |
≥3.5 |
≥3.5 |
≥2.0 |
≥2.0 |
≥2.0 |
| 1500℃*3h B.D(g/c㎡) |
≥2.3 |
≥2.3 |
≥2.2 |
≥2.0 |
≥2.2 |
≥2.2 |
| 1500℃*3h 抗折(MPa) |
≥8.0 |
≥8.0 |
≥5.0 |
≥6.0 |
≥6.0 |
≥5.5 |
| 1500℃*3h 耐压(MPa) |
≥24 |
≥24 |
≥20 |
≥10 |
≥10 |
≥8 |
| 1500℃*3h线变化率(%) |
≤-1.2 |
≤-1.5 |
≤-1.6 |
≤-1.4 |
≤-1.4 |
≤-2.0 |
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