Silicon carbide ceramic foam filters (SiC CFFs) are used in the metal casting industry to remove impurities from molten metals, such as aluminum, copper, and iron. They are particularly effective at removing non-metallic inclusions and oxides from the molten metal, which can cause defects in the final cast product.
At present, SEFU company’s silicon carbide filter has combined the product with modern technology, while ensuring quality, a lot of suitable sizes and shapes have been developed, providing more satisfactory services for enterprises that need filters in more areas.
The origin of SiC CFFs can be traced back to the late 1970s and early 1980s when researchers and engineers began exploring ways to improve the quality of cast metal products. Their idea is extended from the DPF above the car, silicon carbide as a non-metallic product, the chemical properties are very stable, so if you can add a certain physical structure, you can meet the goal of filtering metal solutions and improving the quality of castings.
The development of SiC ceramic foam filters was driven by the need to produce high-quality cast metal products with fewer defects. In the late 1980s and early 1990s, silicon carbide ceramic filters were introduced to the metal casting industry and quickly gained popularity due to their effectiveness at removing impurities from molten metals.
SiC CFFs are made from a porous ceramic material that traps and removes impurities from molten metals. The molten metal filters are typically used in the gating system of a metal casting mold, where they are placed between the pouring basin and the mold cavity. As the molten metal flows through the silicon carbide ceramic filter, the impurities are trapped in the pores of the filter, leaving the clean metal to fill the mold cavity.
After continuous improvement of technology, SEFU’s silicon carbide ceramic foam filter can filter metal solutions including copper and copper alloys, aluminum and aluminum alloys, iron, and so on;
In the casting process, in addition to the material, a reasonable casting system also determines the quality of the final product
In general, SiC CFFs can withstand temperatures up to 1500°C (2732°F) or higher. However, it’s important to note that the filter’s performance and longevity can be affected by factors such as thermal cycling, thermal shock, and exposure to harsh chemicals.
For example, in the metal casting industry, where SiC CFFs are commonly used, the filters are exposed to molten metal at high temperatures. The filters must withstand the high temperatures of the molten metal without degrading or breaking down.