In recent years, Foam Furnace Filters have been developed as a new type of molten metal filter to reduce casting defects. It plays an important role in the metal casting and casting industry, in which they are used to remove impurities in molten metal to improve the quality and performance. Final product.
Even the smallest nonmetallic impurities in the molten metal may have a destructive effect on the properties and strength of the finished metal. This may result in the failure of the final product to meet the necessary quality standards. Ceramic filters play an important role in removing these impurities and ensuring high quality castings.
Ceramic Foam Filters Material
Ceramic foam filter is a phosphate free high alumina based product with high porosity and mechanochemical stability. It has excellent resistance to molten aluminum thermal erosion and corrosion. It can effectively remove inclusions, reduce trapped gas and provide laminar filtration of molten aluminum during laminar flow. The combination of definite tolerance makes it the first choice for molten nonferrous metal filtration.
Ceramic foam filters are widely used in molten aluminum filtration in primary and secondary aluminum foundries. They are also used as filtration media in gas liquid and liquid solid separation engineering.
The ceramic foam filter is equipped with a soft / hard washer to prevent metal bypass. Its size is 40-600mm and the aperture is 10-40ppi. Special sizes are also available.
Application of Foam Furnace Filters
- Purification of molten metal liquid
- Simplified gating system
- Improving metallurgical structure of castings
- Reducing slag inclusion in casting
- Improve the qualified rate of casting
- Reducing reoxidation defects in castings
- Reduce the surface defects after casting processing
- Advantages of ceramic foam filters
- High strength, no loose ceramic particles or powder
- Three dimensional connected mesh structure, high porosity
- The surface area of slag collection is large, and the internal surface area of filtration is large
- Excellent thermal shock resistance
- Available in various sizes, shapes and apertures
- Particles larger than pore size are captured on top of ceramic foam filters.
- The smaller particles are captured by the filter cake produced by the larger particles
- Fine particles are trapped in the pores of the filter