Ceramic foam filter for casting aluminum

28 Jun Ceramic foam filter for casting aluminum

Ceramic foam filters for casting aluminum are a proven, cost-effective solution to remove non-metallic inclusions and oxides from molten aluminum, dramatically improving yield, reducing porosity, and enhancing surface quality in die, sand, and gravity casting processes. Made from open-cell alumina (or silicon carbide) structures, these filters trap slag and dross, stabilize metal flow in the gating system, and cut turbulence—sochoosing the correct pore size and proper placement directly reduces scrap, lowers rework, and delivers more consistent mechanical properties and cosmetic finishes for finished castings.

Ceramic foam filter for casting aluminum

Two series of ceramic foam filters for casting aluminum:

– series for continuous casting of aluminum with direct cooling (DC casting)

– and for casting aluminum in the mold, a shaped casting

Al2O3 ceramic foam filter – standard filter

Special  filter type with increased efficiency and capacity (higher open porosity is achieved, i.e., the filter has fewer clogged pores inside the filter)

Sizes:

10 ” … 26 ’’ (production of the filter under the Customer is possible)
Porosity, PPI: 10 … 70
Bending Strength: approx. 1.5 MPa
The density of the material: 2.2 g. / cm3
Operating temperature: + 1000 – 1200 оС

Main advantages of the filter:

Uniform pore structure
High surface strength (less “snow” in the package)
High operating temperature, up to 1150 ° С
High chemical inertness to reagents. used in a foundry and k. aggressive aluminum melts (8xxx alloy)The 
The ceramic foam filter has been successfully used for casting aluminum. Ceramic foam filter for casting aluminum can be used to cast all common aluminum casting alloys.

The ceramic foam filter is made of quartz-based material using silica as a binder, has a density slightly lower than that of liquid aluminum (lower by 0.4 g / cm3), i.e., the filter is always on the surface of the liquid metal.

Authoritative reference

• Foam Ceramic filter for aluminum
• Ceramic Foam Filters for Aluminum Foundry

Main technical data of the filter:

Filter size: 40 * 40 … 100 * 100 mm (round – D40 … D100 mm)

Porosity, PP: I 10 … 30

Thickness: 22 (15) mm

Special shapes and sizes are available to order.

Adtech provides these products for the Aluminum Casting Industry – www.adtechamm.com – sales@adtechamm.com

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