Product name : Zirconia ceramic foam filter
Item : FCF-S
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Details:
 Zirconia ceramic foam filters for steel castings filtration 

Application: For the filtration of molten steel and alloy, and large scale iron castings
 
Product standard: China national GB/T 25139-2010
 
Zirconia ceramic foam filters are determined for filtering of steel and steel alloys up to the temperature of 1700 °C.
Filters are recommended especially for high quality grades of alloys.
 
  • Drop turbulent of molten steel and alloy
  • Improve accepted rate of steel casting
  • Reduce foreign matter of steel casting
  • Drop twice oxide flaw 
  • Reduce second-face flaw after machine process
 
PHYSICAL PROPERTY: 
Main material: ZrO2
Applied Temperature: ≤1700℃
Color: Yellow
Hole density (PPI): 10/20/30PPI(PPI=pores per inch)
Porosity(%): 80-87
Bending strength(Mpa): ≥1.0
Compressive Strength(MPa): ≥1.75
Bulk Density(g/cm3): 0.7-0.85
 
DIMENSIONS:
Length*width*height=(40-150)*(40-150)*(15-35)mm
With round, square and rectangle shape
Size tolerance: ±1mm
Pore size: 10/20PPI          
PPI tolerance: ±2PPI
 
CHEMICAL COMPOSITION: 
Al2O3 MgO SiO2 Fe2O3 ZrO2
≤1.8% ≥3.0% ≤0.5% ≤0.1% ≥94.00%
 
APPEARANCE REQUIREMENTS:
  • No cracking allowed across the full length of the edge
  • Any fine cracks within the filter matrix may not be through-going
  • Filters should be free from loose debris

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