China Cast Steel Sic Alumina Zirconia Foam Ceramic Filter

Ceramic foam filter is just developed as a new type of molten metal filters to decrease casting flaw in recent years. It is made from high quality ceramic materials, whose main components are Al2O3, Sic, ZrO2, MgO etc. Ceramic Foam Filter has the characters of light weight, high mechanical strength, large specific surface areas, high porosity, excellent thermal shock resistance, chemical corrosion resistance and high temperature stability in molten metal. With the distributing pores net structure, they are able to increase the surface areas, and absorb the sinter, the liquid metal becomes more pure, waster quality problems such as sand pore and air pore are much less and the cast quality becomes much better. The three-dimension structure can improve the cast quality in large scale by changing the molten metal from turbulence flow to lamellar flow, removing the gas and smoothing the casting. It is not only applied for molten metal filtering in high temperature, but gas treatment in high temperature, carrier of catalyzer, solid heat exchange and advanced filling for chemical industry.

Ceramic foam filter are made of Alumina, Silicon carbide or Zircona, have the advantages of high porosity, low loss of thermal shock, high mechanical strength at high temperature, large specific surface, good chemical stability and excellent filtering performance.

We can supply ceramic foam filters are as follows:
1. Silicon Carbide Ceramic Foam Filter is applied to purge and filter solution of ductile iron casting, grey iron and other iron casting.
2. Zirconia Ceramic Foam Filter is applied to purge and filter solution of steel high temperature metal such as steel alloy stainless steel etc.
3. Magnesia Ceramic Foam Filter is applied to purge and filter solution of magnesium and magnesium alloy.
4. Alumina Ceramic Foam Filter is applied to purge and filter solution of aluminium and aluminium alloys.


TypeAlumina CFFSilicon carbide CFFZirconia CFFMagnesia CFFMaterialAl2O3SicZrO2MgOApplied temperature≤1200celsius degree≤1500celsius degree≤1700celsius degree≤1100celsius degreeColorWhiteGrey blackYellowYellowBulk Density0.35~0.55g/cm30.45~0.65g/cm31~1.5g/cm30.5~0.7g/cm3Bore Density10~60PPI10~60PPI10~60PPI10-60ppiPorosity80~90%80~90%80~90%80-90%Bending Strength0.6Mpa0.8Mpa0.8-1.0Mpa0.6MpaCompression Strength≥0.8Mpa≥1.0Mpa≥1.5Mpa≥0.8MpaThermal Shock Resistance
(1100celsius degree ~ Room Temperature)Not break after 6 times thermal shock testingApplicationMolten Aluminum and AlloyMolten Iron and AlloyMolten Stainless Steel, Alloy and other metal in precision moldingMolten magnesium and its alloys