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| 牌號(hào)/指標(biāo) | MgO(%) | Al2O3(%) | Cr2O3(%) | SiO2(%) | Fe2O3(%) | 堆積密度(g/cm3) Packing density | 粒度(mm) Granularity |
|---|---|---|---|---|---|---|---|
| 鎂質(zhì)1型 | ≥91 | ≤1.2 | ≤1.5 | 3-5 | ≥2.40 | 0-10 | |
| 鎂質(zhì)2型 | ≥95 | ≤2 | <1.2 | ≥2.40 | 0-10 | ||
| 剛玉尖晶石質(zhì) | 5-15 | 80-90 | ≤1.2 | ≥2.45 | 0-6 | ||
| 鎂尖晶石質(zhì) | 75-85 | 15-20 | ≥2.40 | 0-6 | |||
| 鎂鉻質(zhì) | 55-60 | 5-8 | 15-25 | ≤3 | 10-15 | ≥2.45 | 0-6 |
| 石英質(zhì) | ≥98 | ≥2.40 | 0-6 |