Observation of production method of ceramic foam filter using polystyrene

The inclusions present in the metals cause serious problems. There are various filtration methods to remove these inclusions. After filtration scrap rates decrease and the mechanic properties of the castings increase. The filtration of metals using ceramic foam filter is one of the methods of filtration. Ceramic foam filters can reduce turbulance in the gating system by smoothing the flow. In this study, the production methods, mechanism of filtration and filtration effectiveness of ceramic foam filters and conventional ceramic filters are compared. New method of production of ceramic foam filter is studied. Instead of polyurethane, polystyrene is used in the production of ceramic foam filter. By tiiis method, the size and the rates of porosity are controlled. It also enables the production of qualified and cheaper ceramic foam filters. Keywords; Ceramic foam filters, filtration, polystyrene. vn