直接结合镁铬砖Direct- Bonded Magnesia-Chrome Bricks
直接结合镁铬砖是用高纯或次高纯烧结或电熔镁砂和铬精矿为原料制成的产品，该产品杂质少，经高温和超高温烧成，玻璃相集中在晶相的三角区内，晶相合晶相之间呈直接结合状。具有气孔率低，耐压强度高，耐磨性强、抗侵蚀、耐热震和抗剥落性好等特点。
Direct- bonded magnesia-chrom bricks are composed of high-purity magnesite or secondary-purity magnesite or fused magnesite and chrome concentrate.Glass phase concentrates in the trian-gel zone of crystalline phass. Which are directly bonded to eash other.The products are characterizedby low-porosity. high cold crushing strength. Strong resistance to adrasion , corrosion, thcrmal shockand spalling.
产品参数
| 指标/牌号 | MgO %≥ | Cr2O3%≥ | SiO2 %≤ | 显气孔率 A·P%≤ | 常温耐压强度 C·C·SMpa≥ | 0.2Mpa荷重软化温度 To.6R·U·L°C≥ | 热震稳定性 T·S·R950°C空冷次≥ | 热导率 （1000°C）W/m·K≤ | 热膨胀率 Thrm·Exp（1400°C）% |
|---|---|---|---|---|---|---|---|---|---|
| HYZMGe-8A | 80 | 8 | 15 | 17 | 40 | 1700 | 60 | 2.8 | 1.5 |
| HYZMGe-8B | 75 | 8 | 2 | 18 | 45 | 1650 | 60 | ||
| HYZMGe-8C | 70 | 8 | 3 | 19 | 45 | 1600 | 60 | ||
| HYZMGe-12 | 60 | 12 | 1.8 | 18 | 40 | 1650 | 60 | 2.8 | 1.5 |
| HYZMGe-12A | 70 | 12 | 1.5 | 17 | 45 | 1700 | 80 | 2.8 | 1.5 |
| HYZMGe-12B | 70 | 12 | 2.0 | 18 | 40 | 1650 | 60 |
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镁铬砖
