The manufacture of aluminum alloys meets the requirements for higher purity of cast metals to improve the quality of the final products (foils, blocks, ingots, rods, profiles). Therefore, molten aluminum filtration is the most effective method, which can reduce the manufacturing waste rate of the final product and improve its quality.
Pollution of hard metals to molten metal, leading to casting finishing problems, is the main reason for the introduction of filtration systems in aluminum foundries. Eliminate undesirable defects such as casting fastness, porosity (porosity), low uniformity, etc.
Molten Aluminum Filtration for Aluminum Alloy
In the continuous or discontinuous movement of the metal casting process, ranging from a few tons to hundreds of tons, a large area filter should be used for filtration.
The ceramic foam filter (CFF) system uses a dedicated ceramic foam filter to remove the inclusions generated between the refining system and the mold table. The ability of the ceramic foam filter to capture these inclusions is essential to keep the ingot clean during metal solidification. Therefore, the quality and productivity of downstream operations are guaranteed such as forging, extrusion, and rolling.
CFF System Manufacturer
AdTech filtration system is suitable for aluminum liquid filtration under long-term temperature load. The size of the ceramic foam filter depends on its porosity, AdTech offers from 10 to 60 PPI. Customers can choose according to the filtering capacity, casting time, and the layout of the filter box. The choice of filter porosity depends on the specific alloy, casting temperature, metal contamination, and required output quality. Before casting, the filter must be fully preheated to ensure its normal operation.
AdTech precision-engineered filter boxes are unique. Their development and design are based on our own metallurgical engineers’ years of experience in the field of aluminum melt filtration and molten transfer technology. AdTech filter system utilizes a new high silicon melting manufacturing technology. The filter boxes can also be custom-designed to meet our customers’ metal filtration requirements.
CFF Filter Box Advantages
- Thermal-shock resistant
- Easy to clean due to design
- Non-wetting for longer life