SiC Ceramic Foam filter is just developed as a new type molten metal filter to decrease casting flaw in recent years. With its characteristics of light-weight, high mechanical strength, large specific surface areas, high porosity, excellent thermal shock resistance, erode resistance, high-performance, SiC Ceramic Foam filter is designed for filtering impurities from molten Iron & Alloy, nodular cast iron castings, grey iron castings and malleable castings, Bronze casting, etc. With their excellent resistance to attack and corrosion from molten iron liquid.
SiC Ceramic Foam filter can effectively remove inclusions, reduce trapped gas from liquid metal and provide laminar flow, and then the filtered metal is significantly cleaner. Cleaner metal results in higher-quality castings, less scrap, and fewer inclusion defects, all of which contribute to bottom-line profit.
*Filter the surdries in the castings, reduce the casting splracles, reduce the veins flowing when pouring the casting, reduce surface defects, obviously to improve the final-product rate
*Reduce castings manufacturing duration and the sword and tool damages, improve casting surface manufacturing quality
*Strengthen castings anti-pressure and airproof features, strengthen elongate anti-resistance intensity, to improve surface glabrousness
*Predigest casting system designing requirement, reduce the length of horizontal casting channel, improve castings technology output rate
The size are available in square, round and custom geometric shapes. Sizes ranging from 10mm up to 600mm, and thicknesses from 10-50mm. The most common porosities are 10ppi, 15ppi, 20ppi, 25ppi. Higher porosities are available upon request.
Characterized by high porosity, stability and excellent resistance to thermal attack. Compared with traditional filtering materials, the ceramic foam filter has obvious advantages as belows:
*Thermal and chemical stability in high temperature, avoiding the chemical reaction with the filtered molten metal
*High porosity and good mechanical strength in high temperature due to its pure ceramic composite
*Low head loss, easy operation, energy-saving
*Making metal liquid flowing at stable speed and avoiding the sputtering and backset, thus increasing the surface quality of the cast part, preventing the pore disfigurement and finally lower down the unqualified rate
*Various sizes, shapes, apertures are available for kinds of foundry technique
| Porosity(%) |
80~90% |
| Working Temperature |
≤ 1500 ° C |
| Bending Strength(Mpa) |
0.8 |
| Compression Strength(Mpa) |
0.9 |
| Thermal Shock Resistance |
1100 ° C---room temperature 6 times |
| Volume Density |
0.4-0.5g/cm3 |
| No. |
Size (mm) |
Flow velocity (Kg/s) |
Filter capacity (Kg) |
| Gray castiron |
Ductile castiron |
Gray castiron |
Ductile castiron |
| 1 |
30 × 50 × 22 |
2~4 |
1~3 |
45~60 |
15~30 |
| 2 |
40 × 40 × 11 |
2~4 |
1~3 |
45~60 |
15~30 |
| 40 × 40 × 13 |
2~4 |
1~3 |
45~60 |
15~30 |
| 40 × 40 × 22 |
2~4 |
1~3 |
45~60 |
15~30 |
| 3 |
50 × 50 × 13 |
3~6 |
2~4 |
55~90 |
25~45 |
| 50 × 50 × 22 |
3~6 |
2~4 |
55~90 |
25~45 |
| 4 |
60 × 60 × 22 |
4~8 |
3~5 |
65~110 |
40~75 |
| 5 |
66 × 66 × 22 |
5~9 |
4~6 |
80~130 |
45~80 |
| 6 |
75 × 50 × 22 |
4~8 |
5~7 |
65~110 |
40~75 |
| 7 |
75 × 75 × 22 |
9~14 |
6~9 |
145~220 |
70~100 |
| 8 |
Φ 50 × 22 |
3~5 |
1~3 |
50~70 |
20~40 |
| 9 |
Φ 60 × 22 |
3~6 |
2~4 |
65~110 |
35~60 |
| 10 |
Φ 70 × 22 |
4~8 |
3~6 |
75~130 |
40~75 |
| 11 |
Φ 76 × 22 |
5~9 |
4~7 |
90~150 |
45~80 |
| 12 |
Φ 90 × 22 |
10~15 |
6~9 |
180~260 |
75~110 |
| 13 |
100 × 50 × 22 |
8~12 |
5~8 |
130~200 |
65~90 |
| 14 |
100 × 60 × 22 |
9~14 |
6~9 |
180~260 |
70~100 |
| 15 |
150 × 100 × 22 |
18~25 |
12~16 |
300~ 400 |
150~210 |
| 16 |
150 × 150 × 22 |
35~50 |
24~36 |
400~ 900 |
300~450 |
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