Increasing Cleanliness of Al-melts by Additon of Ceramic Fibers

The application of ceramic foam filters (CFF) ensures the achievement of the required mechanical properties of cast refractory products. Thereby, the present solid non-metallic impurities precipitate on the surface of the CFF struts and junctions. The Collaborative Research Center 920 deals with the removal of these impurities to increase the metal melt cleanliness in a basic scientific research approach. The findings are of high importance for metal processing industry and an application transfer aims to contribute towards an innovative and competitive casting industry. Subsequent, one promising approach is presented.