Steel ladle pouring material
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Refractory castable
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Details Introduction
Widely used in the edges and bottoms of various steel ladles.
The steel ladle casting material in this series is mainly developed using high-quality bauxite, corundum, spinel, magnesia, and other raw materials. The steel ladle casting material has high fluidity, suitable for casting methods, and can harden without heating. It is generally cast on-site using vibration or tamping methods, and can also be made into prefabricated parts for use.
It has characteristics such as good slag resistance and permeability, high strength at elevated temperatures, good thermal shock stability, and strong spalling resistance, widely used in the edges and bottoms of various steel ladles.
| Project |
Corundum-Spinel |
High-Alumina-Spinel |
||||
| Al₂O₃/% |
≥90 |
≥85 |
≥80 |
≥70 |
≥65 |
|
| MgO/% |
≥5 |
≥6 |
≥8 |
≥8 |
≥10 |
|
| Bulk density g/cm3 |
≥3 |
≥2.9 |
≥2.8 |
≥2.7 |
≥2.6 |
|
| Compressive strength MPa, ≥ |
110℃×24h |
≥30 |
≥30 |
≥30 |
≥30 |
≥30 |
| 1500℃×3h |
≥80 |
≥75 |
≥70 |
≥50 |
≥45 |
|
| Flexural strength MPa, ≥ |
110℃×24h |
≥6 |
≥6 |
≥6 |
≥7 |
≥6 |
| 1500℃×3h |
≥10 |
≥10 |
≥10 |
≥9 |
≥8 |
|
| Permanent linear change rate/% |
1500℃×3h |
0-1 |
0-1 |
0-1 |
0-1.5 |
0-1.5 |
Key words:
Steel ladle pouring material
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