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Alumina Ceramic Foam Filter for Refining

Alumina Ceramic Foam Filter for Refining

Alumina ceramic foam filter is an advanced product used for secondary refining. It has a porous structure network. With the continuous deposition of fluid inclusions, the sieve holes and the size of the sieve holes become smaller and smaller, thereby improving the filtering effect.

In addition, the alumina ceramic foam filter has high strength and can withstand the impact of a certain amount of liquid metal pressure and metal flow, but it is also very fragile. Due to its complex structure, uniform quality, and large surface area, the filtering effect is excellent.

Aluminum casting filter requires good chemical stability and excellent filtration function, especially for the collection and absorption of 1-10um small impurities and filtration residues. By changing the molten metal from turbulent flow to laminar flow, removing gas and smoothing the casting, the CFF three-dimensional structure can greatly improve the quality of the casting.

The alumina ceramic foam filter for secondary refining is a new type of molten metal filter designed to reduce casting defects. It is made of high-quality ceramic materials. The alumina ceramic foam filter has the characteristics of lightweight, high mechanical strength, large specific surface area, high porosity and strong thermal shock resistance, as well as the corrosion resistance and high-temperature stability of molten metal.

Through the distributed network structure, they can increase the surface area and absorb the sintered ore, the liquid metal becomes purer, the waste quality problems such as blisters and pores are reduced, and the casting quality is better.

Alumina Ceramic Foam Filter for Refining

Alumina ceramic foam filters are available in all standard sizes and different thicknesses.

Alumina Ceramic Foam Filter Dimension


We provide all porosities from PPI 10 to PPI 60 (PPI is the number of holes per inch).

  • 30ppi 40ppi Foundry Filter is the most commonly used ceramic foam filter in the aluminum casting industry.
  • Ordinary aluminum casting usually uses 10-40ppi ceramic filter plates.
  • Aviation and high-quality aluminum materials usually use 30-60ppi ceramic filter plates.

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