Silicon carbide foam ceramic filter using German imported polyurethane foam sponge as a carrier, silicon carbide mainly squeezed into the foam sponge, and then squeeze out the slurry,the slurry around the foam fiber, after drying, baking at high temperature,polyurethane thermal decomposition, leaving foam ceramic products, namely silicon carbide foam ceramic filter.
Dimension (mm) |
Pouring rate (kg/s) |
Filtration capacity (ton) |
||
Grey Iron |
Ductile Iron |
Grey Iron |
Ductile Iron |
|
40*40*22 |
4 |
3 |
65 |
32 |
50*50*22 |
6 |
4 |
100 |
52 |
75*50*22 |
9 |
6 |
150 |
75 |
75*75*22 |
14 |
9 |
220 |
100 |
100*50*22 |
12 |
8 |
200 |
100 |
100*75*22 |
18 |
12 |
300 |
150 |
100*100*22 |
25 |
16 |
400 |
200 |
150*150*22 |
50 |
36 |
900 |
450 |
Material |
Silicon Carbide |
Color |
Grey black |
Pore Density |
8-60ppi |
Porosity |
80-90% |
Refractoriness |
≤1500℃ |
Bending Strength |
>0.8Mpa |
Compression Strength |
>0.9Mpa |
Volume-weight |
0.35-0.5 g/cm3 |
Thermal shock resistance |
6times/1100℃ |
Application |
Ductile Cast Iron, Malleable Cast Iron, Gray iron and other Cast Iron |
1.Structure: three-dimensional network structure, smooth rectification and filling The upper, middle and lower three-dimensional network has no blocked holes, no blind holes, reducing eddy current, flocculation laminar flow, and stable filling
The foam ceramic filter can be placed in various parts of the pouring system, and should be selected according to the
characteristics of the parts and production conditions, as close as possible to the casting to achieve the best filtration effect.In practical applications, according to different castings and requirements, the following methods can be used:
● Decontaminate the melting metal liquid
● Simplified gating system
● Improve the metallurgical structure of the castings
● Reduce imparities of the castings
● Improve casting quality rate
● Reduce casting internal re-oxidation defects
● Reduce the surface defects after machining of the castings
Silicon Carbide Ceramic Foam Filter, used for grey iron, ductile iron, copper, bronze, brass, and investment casting
Alumina Ceramic Foam Filter, used for aluminum and aluminum alloy casting
Zirconia Ceramic Foam Filter, used for carbon steel, and stainless steel casting
Selection method:
1, according to the use of temperature to select the appropriate filter type;
2, according to the quality requirements of the casting and purification effect to select the appropriate hole density;
3, according to the casting weight and pouring time to choose the appropriate size.