Description
Magnesia Ramming Mass is an alkaline unshaped refractory crafted from high-purity fused or sintered magnesia, augmented with ultra-fine powder and additives. Notable attributes include its resistance to corrosion and erosion, excellent volume stability, high load softening temperature, and ease of construction. This material finds primary application in the establishment of new linings, repairs, and caulking for iron and steel metallurgy furnaces.
Key Features of Magnesia Refractory Ramming Mass:
- High-Temperature Volume Stability: Demonstrates remarkable stability at elevated temperatures.
- Erosion and Wear Resistance: Resilient against erosion and wear.
- Thermal Shock Resilience: Exhibits strong resistance to thermal shock.
- High Load Softening Temperature: Maintains structural integrity under high loads.
Applications of Magnesia Refractory Ramming Mass:
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- Utilized for both new furnace linings and repair work, including restoration of flat furnace bottoms and converter linings, and as filler material around steel tapping ports.
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- Mainly employed for electric furnace bottom filling and converter repair, serving as filler around the tapping port.
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- Employed in tundish working layers, particularly in larger tundishes, extending service life to approximately 35 hours post-pouring.
Technique Data
| Item | Index | |
| MZD1 | MZD2 | |
| MgO % | ≥90 | ≥95 |
| Cr2O3 % | ≥2 | |
| Bulk Density g/cm3 110℃×24h | ≥2.8 | ≥2.85 |
| Cold Crush Strength MPa 110℃×24h | ≥30 | ≥40 |
| Grain Size mm | 0~5 | |
| Bonding Type | Chemical ceramic bonding | |
