Sic/Alumina/Zirconia Ceramic Foam Filters for Iron Casting¹

Product Description Ceramic foam filter is just developed as a new type of molten metal filters to decrease casting flaw recently. 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.Classification and Specifications:*Alumina / Al2O3 Ceramic Foam FilterIt's mainly for filtration of aluminum and aluminum alloys in foundries*Zirconia / ZrO2 Ceramic Foam FilterIt's used for molten all types of steels like unalloyed, low alloyed, stainless and high-alloyed as well as Nickel and Cobalt-based super-alloys*Silicon Carbide/SiC Ceramic Foam FilterIt's mainly for filtration of cast iron (grey iron & ductile iron) and non-ferrous alloysAdvantages:*High porosity*Low loss of thermal shock*High mechanical strength at normal and high temperature*Large specific surface*Good chemical stability*Excellent filtering functions of screen*Excellent filtering residua collection and absorption 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 

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