Ceramic foam filter for aluminum casting

Short Description:

Foam Ceramic are mainly used for filtration of aluminium and aluminium alloys in foundries and cast houses . With their excellent thermal shock resistance and corrosion resistance from molten aluminum, they can effectively eliminate inclusions, reduce trapped gas and provide laminar flow, and then the filtered metal is significantly cleaner. Cleaner metal results in higher-quality castings, less scrap, and fewer inclusion defects, all of which contribute to bottom-line profit.

Product Detail

Product Tags

Products Introduction:

High porosity, Low loss of thermal shock, High mechanical strength at normal and high temperature, Large specific surface, Good chemical stability and Excellent filtering functions ofscreen, filtering residuum collection and adsorption especially for tiny impurity of 1~10μm. The three-dimensional structure can improve the cast quality in large scale by changing the molten metal from turbulence flow to lamellar flow, removing the gass and smoothing the casting. Ceramic foam filter is not only applied for molten metal filtering in high temperature, but gas treatment in high temperature, carrier of catalyzer, solid heat exchange and advanced filling for chemical industry.

Product Parameters

Ceramic Foam Filter Material
Value Unit Alumina Silicon Carbide Zirconia
Composition Al2O3 ≥85 ≤30 ≤30
SiO2 ≤1 ≤10 ≤4
Others SiC ≥60 ZrO2 ≥66
Channels Density ppi 10~60 10-60 10-60
Porosity % 80~90 80~90 80~90
Bending Strength Mpa 0.6 0.8 0.8~1.0
Heat Conductivity Mpa 0.8 0.9 1.0~1.2
Max Operation Temperature °C 1100 1500 1600
Heat Resistance (1100-20°C) Times/1100°C 6 6 6
Application Non-ferrous, Alumina making Iron smelting Steel making


The size are available in square, round and custom geometric shapes; sizes ranging from 10mm up to 600mm, and thicknesses from 10-50mm. The most common porosities are 10ppi, 15ppi, 20ppi, 25ppi. Higher porosities are available upon request. Custom-made cut-to-size filters are also possible.

Common size in Round shape:
40x11mm, 40x15mm, 50x15mm, 50x20mm, 60x22mm,
70x22mm, 80x22mm , 90x22mm,100x22mm, 305x25mm

Common sizes in Square shape:
40x40x13mm, 40x40x15mm, 50x50x15mm, 50x50x22mm, 75x75x22mm,
50x75x22mm, 100x75x22mm, 100x100x22mm, 55x55x15mm, 150x150x22mm

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