A new type of ladle castable has been developed to address the current situation of steel ladle used in the foundry industry. Using high-grade magnesium aluminum spinel as the main raw material, without cement ultrafine powder coagulation and bonding. Compared with traditional high alumina bricks, aluminum carbon bricks, and magnesium carbon bricks, the overall performance of the ladle lining is better and the service life is longer (can be increased by 3-4 times). The good erosion resistance reduces the molten impurities in the molten steel, improves the purity of the molten steel, and significantly improves the casting yield.
1.High thermodynamic strength and excellent high-temperature wear resistance.
2.Good chemical corrosion resistance to molten slag.
3.Excellent thermal shock stability.
Good high-temperature volume stability.
4.No emission of harmful gases during use, environmentally friendly.
5.Non-stick slag, easy to disintegrate.
1.During use, if cracks or partial scouring of the lining material are found, the steel package repair material should be used for repair in time.
2.Slag adhering to the lining material should be cleaned promptly to prevent excessive slag accumulation from damaging the lining due to strong impact.
3.It is strictly forbidden to flush with water during slag cleaning, as this can damage the lining material.
4.When the steel package lining material reaches its safe thickness (35%-40% of the construction thickness), it should be stopped immediately and replaced with a new one.
|
Model |
Index |
|
|
Main Chemical Composition（%） |
AI2O3 |
≥75 |
|
Mg0 |
≤15 |
|
|
Bulk Density（g/cm3） |
110℃×24h |
≥2.65 |
|
1500℃×3h |
≥2.75 |
|
|
Room Temperature Flexural Strength（Mpa) |
110℃×24h |
≥4.5 |
|
1500℃×3h |
≥9.5 |
|
|
Flexural strength（Mpa) |
110℃×24h |
≥40 |
|
1500℃×3h |
≥55 |
|
|
Linear Change on Reheating（Mpa) |
110℃×24h |
±0.05 |
|
1500℃×3h |
±0.08 |
|
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