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Alumina ceramic foam filter is a kind of advanced three-dimensional netted structure products, and mainly used for purifying and filtering molten aluminium, aluminium alloys and other non-ferrous alloy, to improve the quality of casting. It is widely applied to the aluminum fusant filtration equipment of continuous casting, half continuous casting, gravity casting and low pressure casting.
Alumina ceramic foam filter has the excellent resistance to attack and corrosion from molten aluminum. When the aluminum liquid through the filter, tiny inclusions will be intercepted, adsorption, deposition on the hole wall, can effectively purify the aluminum liquid, solve the problem of aluminum and aluminum alloy sensitivity to internal defects.
Alumina ceramic foam filter is equipped with a gasket on the edges. The gasket assures the proper and tight position of the filter within the filter box. There are different types of gasket available, e.g. ceramic fiber gasket etc. Also you can choose alumina ceramic foam filters without gasket.
Alumina ceramic foam filter is a good heat resistant material. It is mainly used for purification process of aluminum, aluminum alloy, and other nonferrous alloy production, can also be used as gas-solid, liquid-solid separation medium, catalyst carrier, burner and sound-absorbing and environmental protection fields.
Alumina CFF Features
1. Reticulate structure.
2. High porosity, low filtering resistance.
3. High mechanical strength, no dross (ceramsite) drop.
4. High adsorption ability for impurity.
5. Excellent thermal shock resistance.
6. Beveled edges and compressible gasket.
Alumina ceramic foam filter is mainly applied to the aluminum and aluminum alloys fusant filter equipment of continuous casting, half-continuous casting, gravity casting, and low pressure casting, also applied to other non-ferrous metal precision casting, gas-solid and liquid-solid separation medium, high temperature gas filter, chemical filling, sound absorbing material and catalysis carrier etc.
Type | Alumina CFF |
Main material | Al2O3 |
Al2O3 | ≥80% |
SiC | ≤5 % |
Other | ≤15% |
Color | White |
Pore size (Pores Per Inch) | 10-60PPI |
Porosity | 80-90% |
Max Working Temperature | ≤1200°C |
Bending Strength | 0.6Mpa |
Compression Strength | ≥0.8Mpa |
Bulk Density | 0.35-0.55g/cm3 |
Thermal Shock Resistance(1100-20°C) | Not break after 6 times thermal shock testing |
Application | Molten non-ferrous, aluminium and its alloys |












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