Foam ceramic filters with gasket take reticular structure and organic foam as the carrier and put the carrier into the thixotropic Al2O3slurryadopt square to center correcting automatic extrusion process. Slurry evenly deposits in foam. After drying solidification, the carrier will turn into the final product under 1180℃, especially used for aluminum precision casting.
The ceramic filter is surrounded by a sealing gasket, laying between filter and filter bowl, to prevent molten aluminum leaking through the interface. AdTech’s filter adopts sealing gasket in 3 different types, fiber paper material, fiber cotton material, expanding cotton material.
Foam ceramic filters with gasket are produced based on the carrier with solid reticular structure and combined organic foam pores. The producing procedure is as below, put the carrier into the thixotropic alumina slurry, adopt square to center correcting automatic extrusion process, so that slurry evenly deposits in foam skeleton of the carrier, after drying solidification, then the carrier will turn into the final product by roasting formed under 1180 ℃ high temperature. The ceramic foam filter is installed in the filter bowl for filtrating impurity in molten aluminum alloy, which helps to meet the requirement of production in high value-added, high-tech performance aluminum alloy precision casting, such as computer hard drive, PS baseboard for printing, canning materials, fan blades for turbojet engine, etc.
The foam ceramic filters are surrounded by a sealing gasket, laying between filter and filter bowl, to prevent molten aluminum leaking through the interface. AdTech’s filter adopts sealing gasket in 3 different types, fiber paper material, fiber cotton material, expanding cotton material. It is surrounded and sealed by an expanded gasket with 200% expanding above 450°C to prevent floating and leakage of aluminum liquid through the contact surface. Filtered by the adsorption principle, it can effectively remove large inclusions in the aluminum liquid, and effectively adsorb fine inclusions of micron size, and the filtration efficiency of the same PPI is high.