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.
Materail: mullite. Mullite ceramic honeycomb filter have straight holes, more strongth compare to ceramic foam filter. Apply to iron, copper, copper, steel, stainless steel foundry.
Function:
1. Can remove big oxide,
2. Calm down turbulent laminar flow,
3. Absorb smaller impurities with it's myriad eyelets whicn only been found in microscope
Specification:
Al2o3: 50%
Hole type: square/round/triangle
Millihole: 2--3 um
Coefficient of thermal expansion: less than 4.0
Refractoriness: 1700 dgree celsius
Bending strength at normal temperature
Formal size: 50*50*12.5mm, 50*75*12.5mm, 100*75*12.5mm. Size can be changed according your requirements.
Ceramic foam filter used for casting
Our products have many advantages such as superior porosity, big m2/m3, high temperature resistance and excellent thermal shock resistance (see detail in technical data), it used in foundry, noise elimination and other industries widely. And especially for the foundry & casting industry.
Mechanic deterring: remove big oxide
Filtration: filtrate small impurities and oxide
Commutated function: calm down turbulent f¦claminar flow
Mixed round function: mix the distributaries and confluence flow equality, reduce air bubble
Absorbing function: the myriad eyelets which only been found in microscope can absorb smaller impurities, make more excellent metal liquid
31*31*22(cm) wrapped every pieces with soft plastic materials then packed in carton
