Ceramic Filters
Tucson, Arizona, USA
Skyline Components, LLC
Ceramic Foam Filter

Ceramic foam filters have a foam-like porous structure. They are
made of refractory materials that are resistant to molten metal
erosion. They are mainly used in the field of metallurgy and
casting metal liquid filtration and purification to remove
undesirable nonmetallic inclusions and reduce trapped gas that
are contained in the casting. There are three ceramic foam
filters, alumina, silicon carbide (SiC) and zirconia foam filters.
They can be supplied in round, square, rectangular or other
customized shapes with different pore sizes and porosities.


Extruded Ceramic Filter

Extruded ceramic filter has straight channels in honeycomb
structure. It is mainly used in metallurgy and foundry industry to
filter out impurities, reduce casting porosity, eliminate turbulence
in the metal stream and improve casting quality.


Characteristics

o Light weight
o Large surface area through-hole rate
o high pass rate
o Good chemical stability and corrosion resistance
o High mechanical strength
o High thermal shock resistance



Specifications
Alumina Foam Filter
SiC Foam Filter
Extruded Ceramic Filter
Filter type
Ceramic Foam Filters
Extruded Filter
Filter Materials
Alumina
SiC
Zirconia
Cordierite-Mullite
Applications
Aluminum
and
aluminum
alloy
Iron, Iron
alloy, copper,
bronze and
brass
Steel,
Stainless
steel and alloy
Grey iron, ductile
iron, aluminum
alloy and other
non-ferrous
alloys
Volume Density (g/cm3)
0.4 - 0.5
0.3 - 0.5
0.7 - 1.0
0.8 - 1.2
Hole Density (ppi)
10 - 40
8 - 30
10 - 30
100 – 300
(csiI)
Open Porosity (%)
80 - 90
80 - 90
80 - 90
35 - 60
Maximum Working
Temperature
(°C)
1100
1500
1700
> 1500
Compressive Strength (MPa)
0.8
1.0
1.5
> 2
Bending Strength (MPa)
0.6
2.5
1.0
 
Thermal Shock Resistance
(times
from1100°C to room
temperature)
6
6
3
5