Carbon Silicon/Zirconia/Magnesia/Alumine Ceramic Foam Filter for Casting Industry
Ceramic foam filter are made from high quality ceramic materials, whose main components are SiC, Al2O3, ZrO2 etc. With good properties and stable quality, ceramic foam filter are used as a filter media in various working conditions in casting system.
Advantages
1. Remarkably reduce the objection of impurity, sand inclusions, sand hole, slag eye, pore.
2. Improve the surface quality, machinability and mechanical property of the cast.
3. Reduce the fray of the cutting tools, increase the availability of the plate pattern.
4. Simplify the gating system, raise the qualified rate of the cast.
Characteristics
1. High void volume, precise dimension, high strength.
2. High refractoriness, good thermal shock resistance.
We can supply ceramic foam filters are as follows:
Al2O3 Based Ceramic Foam Filter is applied to purge and filter solution of molten aluminum and aluminium alloys and other non ferrous casting.
SiC Based Ceramic Foam Filter is applied to purge and filter solution of molten iron and iron alloys.
ZrO2 Based Ceramic Foam Filter is applied to purge and filter solution of molten steel and steel alloys.
MgO Based Ceramic Foam Filter is applied to purge and filter solution of magnesium and magnesium alloy.
Technical data
Items |
Alumina CFF |
Silicon carbide CFF |
Zirconia CFF |
Magnesia CFF |
|
Main material |
Al2O3 |
SiC |
ZrO2 |
MgO |
|
Chemical Composition (%) |
Al2O3 |
≥80 |
≤25 |
≤15 |
- |
SiC |
≤5 |
≥70 |
≤5 |
- |
|
ZrO2 |
- |
- |
≥70 |
- |
|
Other |
≤15 |
≤5 |
≤10 |
- |
|
Bulk density (g/cm3) |
0.35-0.55 |
0.45-0.65 |
1-1.5 |
0.5-0.7 |
|
Compressive strength (Mpa) |
≥0.8 |
≥1.0 |
≥1.5 |
≥0.8 |
|
Thermal coefficient (W/ m·K) |
0.20 |
0.45 |
0.30 |
0.20 |
|
Thermal shrinkage rate (%) |
<0.3 |
<0.3 |
<0.3 |
<0.3 |
|
Max working temperature (°C) |
≤1200 |
≤1500 |
≤1700 |
≤1100 |
|
Porosity (%) |
80-90 |
80-90 |
80-90 |
80-90 |
|
Thermal shock resistance(1100-20°C) |
>6 times |
>6 times |
>6 times |
>6 times |
|
Aperture (Pores Per Inch) |
10-60 |
10-60 |
10-60 |
10-60 |
|
Application |
non-ferrous, aluminium and its alloys casting |
Copper and alloy, iron and its alloys casting |
steel and its alloys casting |
Magnesium and its alloys casting |
|
Available sizes |
Length/ Width |
40-584mm (1.5″-23″) |
40-584mm (1.5″-23″) |
40-200mm (1.5″-8″) |
40-200mm (1.5″-8″) |
Diameter |
40-584mm (1.5″-23″) |
40-584mm (1.5″-23″) |
40-200mm (1.5″-8″) |
40-200mm (1.5″-8″) |
|
Thickness |
≤50.8mm (2″) |
≤50.8mm (2″) |
≤50.8mm (2″) |
≤50.8mm (2″) |
|
Customized sizes and shapes are available. |
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