Goto Kingsun to know more.
Ceramic foam filters are considered to be the best choice for filtering aluminum liquid for the following reasons:
1 High-temperature resistance
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.
2 Resistance to erosion
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.
3 Stable pore structure
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.
4 Good chemical stability
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.
5 Highly accurate filtration efficiency
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.
Want more information on Ceramic Foam Filter for Aluminum Casting? Feel free to contact us.
6 Easy to clean and maintain
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.
7 Long life and reusability
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.
More about ceramic foam filter:
SELEE® filters are preferred by aluminum foundries due to their superior dimensional control, resulting in optimal mold fit and reduced risk of metal bypass.
Whether your foundry produces standard aluminum castings or critical, complex, thin-wall aerospace castings, we have the optimal filter for your application.
These filters are pecision cut after firing to the tightest dimensional tolerences including the cut sides have the desirable open-pore structure of true ceramic foam.
The superior dimensional tolerances of SELEE® filters for aluminum filtration are recognizable at first glance. These filters are precision cut after firing to the tightest dimensional tolerances in the world. All surfaces, including the cut sides, have the desirable open-pore structure of true ceramic foam.
– Learn More –
If you are looking for more details, kindly visit Alloy Supplier.