Ceramic Foam Filter

Alumina Ceramic Foam Filters mainly for filtration of aluminum and aluminum alloys in foundries and cast houses . With their excellent resistance to attack and corrosion from molten aluminum, they can effectively remove 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. 　　
Physical Properties for Alumina Ceramic Foam Filters
Working Temp ≤1200®C
Porosity 80~90%
Compression Strength (Room Temperature) ≥1.0Mpa
Volume Density ≤0.5g/cm3
Thermal Shock Resistance 800®C to room temperature 5 times
Application non-ferrous and alumina alloys, high temperature gas filter, chemical fillings and catalysis carrier etc.
Chemical Composition for Alumina Ceramic Foam Filters
Al2O3 SiC SiO2 ZrO2 Others
85% approx --- 6% approx --- 9% approx
• USEN offers the whole range of porosities from PPI 10 up to PPI 60 (PPI = pores per inch).
• USEN Alumina Ceramic Foam Filters are available in all common sizes:7”x7”x2”, 12”x12”x2”, 15”x15”x2”, 17”x17”x2”, 20”x20”x2”, 23”x23”x2”.Other sizes can be customized upon request.