Ceramic Foam Filter Molten Metal Filtration

The ceramic foam filter cff of selee structure was the first cost effective media to remove non metallic inclusions from molten aluminum.

Ceramic foam filter molten metal filtration.

The cellular design also provides an engineered balance between flow rate and strength. Zirconia ceramic foam filter application. Using cost effective metal filtration cup filters simple but very effective to replace ceramic foam filter. When pyrotek launched in 1956 its primary product was a glass cloth filter for molten aluminium.

Molten metal filtration and distribution during aluminum casting it is common practice to use the filter bag made from the heat resistant glass fiber fabric in order to filter the molten aluminiuim that is being poured through a spout and to distribute it all over the mold surface. The superior dimensional tolerances of selee filters for iron filtration are recognizable at first glance. Ceramic filters placed in the base of the pouring cone can impede the metal feedback from the hot topping s exothermic reaction because they can t be easily removed. These filters are precision cut after firing to the tightest dimensional tolerances in the world.

All surfaces including the cut sides have the desirable open pore structure of true ceramic foam. With the excellent resistance to attack and corrosion from molten aluminum the filter can effectively remove inclusions reduce trapped gas and provide laminar flow and then the filtered metal is significantly cleaner. Introduced by selee in the mid 1970s and redeveloped with cs x the selee ceramic foam filter continues to be the standard for aluminum filtration in cast houses all over the world. Alumina ceramic foam filter is mainly for the filtration of molten aluminium and alloys in foundries and.

Zirconia ceramic foam filters are determined for filtering of steel and steel alloys up to the. Inline filters for casthouse applications can take many forms and are usually categorized into multiple use filter boxes or single use disposable filters such as trough socks and ceramic foam filters cff. Temperature of 1700 c. Filters are recommended especially for high quality grades of alloys.

For the filtration of molten steel and alloy large scale iron casting advantage. Extruded ceramic filters can effectively capture inclusions and reduce turbulence of the molten metal mullite based ceramic material could withstand heavy pouring thermal shock and extreme pouring temperature.