Ceramic Foam Filter


Product Details


Ball-tec ceramic foam filter with a high temperature, corrosion resistance, resistance to molten metal erosion, high strength, high pass rate, and the characteristics of the large surface area is mainly used in the field of metallurgy and casting metal liquid filtration and purification. The flow of a mixture of molten metal passes through foam ceramic porous structure becomes uniform smooth clean molten metal filled the mold to remove the molten steel in the fineness of micron inclusions and some parcels gas reduce the erosion of the sand mold, and reduce product obsolescence rate. Ceramic foam filters can be made of different pore size and porosity, in order to obtain satisfactory filtration effect.

Ceramic Foam Material

Ceramic foam filter, depending on the materials: alumina foam ceramic filters, silicon carbide ceramic foam filter, zirconia ceramic foam filter, and magnesium oxide foam ceramic filter.

1. Silicon Carbide Ceramic Foam Filter: 
Working Temperature is 1560 Degree Centigrade. In the bronze casting process, the use of silicon carbide ceramic foam filter material is of SiC.

2. Zirconia Ceramic Foam Filter:
Working Temperature is 1700 Degree Centigrade. Steel castings uses zirconia ceramic foam filters. Zirconia ceramic foam filters material of ZrO2 zirconia. Zirconia heat-resistant temperature of the filter is higher than about 1760 ° C, with very high strength and excellent high-temperature impact.

3. Alumina Ceramic Foam Filter: 

Working Temperature is 1200 Degree Centigrade. Alumina ceramic foam filter products effectively remove solid-state mixed with the molten metal, so aluminum alloy can be successfully forged, aluminum foil manufacturing, extrusion processing technology, perfect aluminum products. 10ppi coarse porosity 70ppi of fine porosity range of options.

Applications and Specifications

Foam ceramic material Alumina Silicon Carbide Zirconium Oxide
Application Alumina or aluminium alloy casting Iron or iron alloy casting Steel, stainless steel and synthetic steel casting
Holes density (ppi) 10 to 50 10 to 45 10 to 30
Open porosity(%) 80-90 80-90 80-90
Working temperature (0C) 1200 1500 1750
Thermal shock resistance (times/11000C) >6 >6 >7
Compressive strength (Mpa) 0.8 0.9 0.8 to 1.0
Bending strength (Mpa) 0.6 0.8 1.0 to 1.2
Dimension tolerance 0.5mm  0.5mm  0.5mm