The anti seepage castable for aluminum melting furnaces is formulated primarily from high-alumina bauxite clinker and powder, with pure calcium aluminate cement as the binder, and additives such as aluminum powder, kyanite, shrinkage inhibitors, and explosion-proof fibers.It can be cast to form a monolithic lining or manufactured into precast blocks for masonry construction.
The finished material made from this anti-seepage castable has a bulk density higher than that of molten aluminum and magnesium vapor, as well as low porosity, which effectively prevents the penetration of magnesium vapor.
Its high strength and low wear index help prevent lining damage caused by alloy additions. In addition, its excellent thermal shock resistance enables it to withstand the thermal stress generated by rapid heating and cooling.
In aluminum melting furnaces, anti seepage castable refractories are typically used to cast the anti-seepage layer at the furnace bottom (i.e., the layer below the brickwork or castable working lining) to prevent molten aluminum leakage.
During operation, the material reacts with alkali metal ions in the electrolyte to form a protective barrier layer, thereby preventing molten metal penetration.
|
Project |
HX-FJ45 |
|
|
Al2O3(%) |
45 |
|
|
Bulk Density (g/cm3) |
110℃×16h |
2 |
|
Compressive Strength (MPa) |
110℃×16h |
15 |
|
816℃×3h |
15 |
|
|
Linear Rate of Change (%) |
110℃×16h |
-0.1 |
|
816℃×3h |
-0.2 |
|
|
1100℃×3h |
-0.3 |
|
The anti seepage castable for aluminum melting furnaces features high refractoriness under load, low thermal conductivity, and good thermal stability. It provides excellent resistance to molten metal penetration, improving the overall structural integrity of the furnace, reducing the penetration of reactive substances into the refractory layer, and extending the service life of the furnace.
The material is also corrosion-resistant, impact-resistant, and wear-resistant. It is easy to install and effectively prevents penetrative substances in aluminum alloys from entering the lining, thereby improving the quality of aluminum alloy smelting.
In engineering design, anti seepage castables are typically used as a protective functional layer. They work together with non-stick aluminum castables in the working layer to form a composite structure with anti-penetration, non-stick, and wear-resistant properties.
Typical application areas include:
●Critical anti-seepage areas at furnace bottoms and sidewalls of aluminum melting furnaces
●Holding furnaces and soaking furnaces
●Molten aluminum flow channels and the bottom layers of chutes
●Aluminum transfer ladles and ladle anti-seepage layers
●Structural areas highly susceptible to molten aluminum penetration
Standard Packaging: 50 kg bags, ton bags, palletized packaging, or sealed packaging. Custom packaging is available upon request.
Storage: Store in a dry and well-ventilated environment. The product maintains stable performance under recommended storage conditions.
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