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Product introduction of non-stick aluminum castable
Refractory materials non stick aluminum castable is an ultra-low cement castable developed for aluminum and alloy industry, which is made of silicon carbide, fused corundum and bauxite as main raw materials and other additives in a reasonable proportion.
Features of non-stick aluminum castable
The non stick aluminum castable refractory materials has the characteristics of strong integrity, high strength, corrosion resistance, anti stripping, anti permeability, good thermal stability, non stick aluminum, non slagging, etc.
Application of non-stick aluminum castable
By adding an appropriate amount of “non wetting agent” (such as high-purity chromium oxide, composite barium salt, composite zinc salt, etc.), the wettability of aluminum and alloy, and slag on refractory can be greatly reduced, and the corrosion resistance, erosion resistance, and non adhering to aluminum and slag functions of refractory on aluminum liquid containing salt, flux and other chemical components can be improved, that is, aluminum, alloy, and slag can be prevented from infiltrating into refractory and the service life of furnace lining can be extended. Refractory material non-stick aluminum castable is very suitable for melting furnace, standing furnace, launder and aluminum clad lining.
Parameters of non-stick aluminum castable
Item | BZL-1 | BZL-1A | BZL-M | BZL-F | BZL-G | |
Al2O3,% ≥ | 60 | 65 | 65 | 70 | 80 | |
Fe2O3,% ≤ | 0.6 | 0.5 | 0.4 | 0.4 | 0.3 | |
BaO+ZnO+B2O3,% ≥ | 3 | 3 | 3 | 4 | 4 | |
Bulk density,g/cm3 ≥ | 2.4 | 2.5 | 2.65 | 2.7 | 2.8 | |
Compressive strength ,Mpa ≥ | 110℃×24h | 35 | 40 | 40 | 45 | 45 |
1300℃×16h | 40 | 45 | 45 | 50 | 50 | |
Flexural strength,Mpa ≥ | 110℃×24h | 5 | 10 | 10 | 12 | 14 |
1300℃×16h | 10 | 13 | 13 | 15 | 16 | |
Line change rate,% | 1300℃×3h | 0~+0.2 | 0~+0.2 | 0~+0.2 | 0~+0.1 | 0~+0.1 |