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Porous Ceramic Filter ss
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porous ceramic filter can not only effectively remove the bulk heterogeneous impurities in the molten aluminum, but also filter out small inclusions of a few microns that cannot be removed by traditional processes. Since the hydrogen atoms and other harmful ions in the aluminum, the liquid is often adsorbed on the inclusions, and the inclusions can become the core of bubble formation, filtering the inclusions, can also reduce the harmful gases in the aluminum liquid.
The Reticulated Foam Filter manufacturer will use a set of more complete measures to ensure the stability of the product, to ensure that the strength, through-hole rate, geometric size, appearance quality, and physical and chemical properties of the final product meet the standards.
In production, in order to achieve a better filtering effect, the aluminum liquid upstream of the porous ceramic filter must have a certain degree of cleanliness, that is, the upstream aluminum liquid can be treated with traditional gas dehydrogenation or flux treatment.
To remove inclusion particles above 30um, it is recommended to use multi-stage filtration technology and filter with different PPI filter combinations to achieve satisfactory results.
If the above measures are not used as a prerequisite, separate filtration and purification of aluminum alloy melt with high hydrogen and oxygen content, many non-metallic inclusions, and larger sizes, not only the filtration efficiency are low, but the filter is easy to block, resulting in increased costs and purification The effect will not be very good.
After taking the above measures, the hydrogen content in the alloy melt has been reduced to a very low level, and the size of the oxide inclusions in the melt has also been smaller.
Therefore, the use of a porous ceramic filter can effectively remove the fine and dispersed oxidation inclusions, thereby improving the filtration efficiency and reducing the cost of filtration and purification.
In addition, the filtered high-quality molten aluminum must be protected from secondary pollution, that is, there should be more stringent requirements for the refractory materials downstream of the filter box, and the surface oxide scale of the downstream molten aluminum must be protected.