Alumina Ceramic Foam Filter is produced with the organic foam sponge with three-dimensional network structure and connected pores is used as the carrier, which is infiltrated into the special ceramic slurry with thixotropy, and a special rolling process is adopted to make the ceramic slurry evenly spread on the skeleton of the carrier, and then finished by roasting at high temperature after drying curing.
If you want to learn more, please visit our website HEBEI CANGCHEN.
Mainly for the filtration of molten aluminium and alloys in foundries andcast houses. With the excellent resistance to attack and corrosion from molten aluminum, the filter can effectively remove inclusions, reduce trapped gas and provide laminar flow,and then the filtered metal is significantly cleaner.
Why use Alumina Ceramic Foam Filter Plate in the process of aluminum liquid?
There are many reasons for aluminum pollution:
● In the smelting process, aluminum is exposed to the furnace atmosphere in a molten or semi-molten state, easy to oxidize, easy to react with water vapor and absorb hydrogen, easy to form various forms of non-metallic slag (such as furnace lining debris, chloride, carbide in flux, etc.) and coarse metal intercompound particles and so on.
● Part of the waste that makes up the charge brings some non-aluminum impurities into circulation.
● Because the waste comes from the factory of each process waste and waste and waste outside the plant, so the way is different, the composition is complex, the quality is poor. These impurities often make the billet produce bubbles and inclusions, which seriously affect the purity of the metal melt, and further affect the machining properties, mechanical properties, corrosion resistance and the appearance quality of the product.
What can Alumina Ceramic Foam Filter Plates do?
● Alumina foam ceramic filter plate can effectively remove all kinds of inclusions with fineness up to micron level in aluminum liquid, make aluminum liquid into a steady laminar flow, which is conducive to filling.
● It has a unique mullite-corundum structure, good mechanical strength and chemical stability, excellent resistance to aluminum liquid erosion performance.
● It can obtain stable filtration effect by strict control of hole size and through hole rate.
● The ceramic foam filter plate is surrounded by a sealing ceramic fiber liner, which facilitates the seal of the filter plate in the filter box to ensure that there is no metal liquid sideflow.
If you are interested in our products, please feel free to contact us.
Physical Performance Indicators
ColorWhiteEdge CoveringAsbestos---NormalExpanded Vermiculite---SuperiorPPI10/20/30/40/50/60(Customized)AL2O3 Content ≥83％ Porosity ≥85％ Proportion 0.3g/cm³-0.45g/cm³ Refractory temperature ≥℃ Bending strength ＞0.5Mpa Thermal shock resistance 750℃/5times SolubilityUnder the temperature of metal aluminum and aluminum alloy solution, the filter equipment will not chemically react with the solution and dissolve.CertificateISO:REACH & RoHS
Technical Data Sheet
Dimension(mm)Tolerance(mm)Thickness(mm)Rake AngleTortuosity(mm)Diagonal LineEffective Filtration Area(%)Filtration Flow Range(Kg/min.) 12"/(305*305*50) ±3 50±1 17.5°＋1° Max.4＜1% of side length-158 15"/(381*381*50) ±3 50±1 17.5°＋1° Max.4＜1% of side length-255 17"/(432*432*50) ±3 50±1 17.5°＋1° Max.4＜1% of side length-345 20"/(508*508*50) ±4 50±1 17.5°＋1° Max.4＜1% of side length-480 23"/(584*584*50) ±4 50±1 17.5°＋1° Max.4＜1% of side length-645
Size and Shape Deviation
Related articles:Top Metal Decorative Mesh Trends to Watch in 2025
For more Aluminium Ceramic Filter Platesinformation, please contact us. We will provide professional answers.
Features of Alumina Ceramic Foam Filter
● Superior dimensional tolerances.
● Stable chemical property.
● Excellent filtration efficiency.
● Excellent mechanical strength.
● Resistant to corrosion and thermal shock resistance.
● Beveled edges and compressible gasket.
Uses of Alumina ceramic foam filter
Aluminum Ceramic Foam Filter is mainly applied to the aluminum and aluminum alloys fusion filter equipment of continuous casting, half continuous casting, gravity casting, and low-pressure casting. It is 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. Get a quote.
How Ceramic Filter Plate work?
This high-tech ceramic product has three-dimensional connected pores, and its shape, pore size, permeability, surface area, and chemical properties can be adjusted appropriately.
Ceramic materials have excellent high-temperature resistance and can withstand the operation of aluminum liquid under high-temperature conditions. Aluminum liquid is usually processed at a temperature range of 700°C to 900°C, while ceramic foam filters can maintain strength and stability under such extreme temperatures.
Ceramic foam filters have high resistance to erosion from gases and impurities in aluminum liquid. Aluminum liquid often contains hydrogen, oxygen, and other gases that can cause corrosion and damage to the filter material. Ceramic filter plates can effectively resist these erosive effects, maintaining the integrity and performance of the filter plate.
Ceramic foam filters can also maintain a stable pore structure under high-temperature conditions. Under high-temperature conditions, some materials may undergo sintering or expansion, resulting in changes or blockages in the pore structure. However, ceramic materials have low thermal expansion coefficients and excellent thermal stability, which can maintain the stability and consistency of the pores at high temperatures.
Ceramic materials have good corrosion resistance to many chemical substances, including aluminum oxide and other metal oxides commonly found in aluminum melt. This chemical stability ensures that the filter plate will not corrode or dissolve when in contact with aluminum melt, thereby ensuring the stability and reliability of the filtration effect.
The pore size of ceramic foam filters can be adjusted according to specific requirements to achieve precise filtration effects. This means that different sizes of pore size can be selected according to the need to filter out specific sizes of impurities and particles. This precision is important for the treatment of aluminum liquid, as impurities in the aluminum liquid may hurt the quality of the final product. Usually, the pore size of ceramic filter plates can be selected from a few microns to tens of microns, and this precise pore structure can effectively filter out impurities and solid particles in the aluminum liquid, providing high filtration efficiency and product quality.
Ceramic foam filters are relatively easy to clean and maintain. Ceramic materials usually have a smooth surface and chemical inertness, making it difficult for impurities to adhere to the filter plate. This can reduce the frequency of cleaning and maintenance and improve production efficiency.
Ceramic materials typically have excellent wear and fatigue resistance and can withstand prolonged use and repeated filtration operations without being easily damaged. In contrast, other materials may deform, wear, or break due to temperature, chemical substances, or mechanical stress, resulting in decreased filtration performance or requiring frequent replacement.
It is important to note that ceramic foam filters also have some limitations. Firstly, they may be relatively expensive, with higher costs compared to other filtration materials. Additionally, due to the brittleness of ceramic materials, careful handling and use are required to avoid damage.
Comments
0