SIC ALUMINA ZIRCONIA Ceramic Foam Filter for Foundry Molten Metal Castings Filtration
Ceramic foam filters of NINGXIN are developed and manufactured for the filtration of molten metals. As the most advanced filter type with the highest filtration efficiency, It can effectively reduce inclusions and turbulence of molten metal, ensuring purified molten metal goes into the mold cavity with improved flow rates.

Application: For the filtration of molten Iron,copper,brass,aluminum and steelalloy
Main material | Silicon carbide (SIC) | Aluminium oxide (Al2O3) | Zirconia (ZrO2) |
Working Temperature | ≤1500ºC | ≤1100ºC | ≤1700ºC |
Color | Gray black | White | Yellow |
Hole density (PPI=pores per inch) | 10/15/20/25/30PPI | 20/30/40/50/60PPI | 10/20/30PPI |
Porosity(%) | 80‐90 | 80‐90 | 80‐90 |
Compressive Strength(MPa) | ≥1.0 (Room temperature) | ≥1.0 (Room temperature) | ≥1.0 (Room temperature) |
Bulk Density(g/cm3) | 0.4‐0.55 | 0.35-0.4 | 0.8-1.1 |
Thermal shock resistance | ≥2times/1100ºC‐Room temp. | ≥2times/900ºC‐Room temp. | ≥2times/1300ºC‐Room temp. |