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Magnesia Ramming Mix for induction furnace
Product Detailed
Magnesia Zirconium Ramming Mix:
1.high strength under high temperature
2.good resistance to alkalies,oxide and sulfide
| Items | trigonum of furnace roof | furnace roof performed unit | steel tapping hole filler | furcace bottom ramming mass | gunning mix |
| maximum service temperature,°c ≥ | 1750 | - | - | - | - |
| Al2O3,% ≥ | 80 | 80 | - | - | - |
| MgO,% ≥ | - | - | 50 | 80 | >85 |
| CaO,% ≤ | 2.0 | 2.0 | - | 5-10 | |
| SiO2,% | - | - | 35-40 | ≤2.0 | - |
| Fe2O3,% | - | - | - | 5-10 | - |
| Cr2O3,% | - | 3-5 | - | - | - |
| bulk density,g/cm3 ≥ | 110°c*24h 2.9 | 2.95 | - | 2.3 | 2.2 |
| 1600°c*3h 2.9 | - | - | - | - | |
| comperssive strength,Mpa ≥ | 110°c*24h 35 | 35 | - | - | 60 |
| 1600°c*3h 40 | - | - | 85 | - | |
| modulus of rupture,Mpa ≥ | 110°c*24h 6.0 | 6.0 | - | - | - |
| 1600°c*3h 8.0 | - | - | - | 4.0(1500°c*3h) | |
| refractoriness,°c | 1710-1750 | - | - | - | - |
| grain composition,% | >6mm,≤10 | - | <3mm,≥90 | >1mm,≥35 | <0.074mm,≥20 |
| linear change,% | 0.2-0.6(1600°c*5h) | - | - | - | 0-0.4(1500°c*3h) |
| application | trigonum of electric furnace roof with super high power | - | EBT steel tapping hole | drying ramming f or work lining of electric furnace bottom with super high power | gunning for electric furnace slag line part |
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