Ceramic foam filter 1. Alumina work at 1100 centigrade degree, apply for aluminium foundry. 2. Zirconia work at 1700 centigrade degree, apply for steel, stainless steel foundry. 3. Silicon carbide work at 1500 centigrade degree, apply for iron, copper, copper alloy foundry. 4. Fused zriconia-alumina work at 1600 centigrade degree, apply for some steel which have lower tem. Requirement. Ceramic foam filter is been made by specific procedures and have peculiar bone-frame holes just like the shape of foam(called three-dimensional connected channel) and myriad eyelets which only been found in big times microscope. Compare to similar ones, our products have many advantages as below: Stable chemical composition Excellent strength Resistant to high temperature Calm down of the turbulent flow of metal nicely Big m2/m3 Superior dimensional tolerances: +0/-2.5 Suggestions: A. Control the melting point satisfactorily. Especially high temperature will destroy it's function. B. Suitable ppi for different casting materials. C. Use the maximum temperature as soon as possibly. D. The pouring highness don't exceed 20cm commonly, and metal liquid don't touch the filtration directly. Standard export packing