Zirconia Ceramic Foam Filters mainly for filtration of aluminum and aluminum alloys in foundries and cast houses. With their excellent resistance to attack and corrosion from molten aluminum, they can effectively remove inclusions, reduce trapped gas 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. Zirconia cermic foam filter apply to purge solution of carbon steel, steel alloy and stainless steel, it can endure require of technology of steel and get rid of foreign matter and materials of corroded model. Zirconia ceramic foam filter can also drop turulent and reduce twice oxided foreign matter.
Zirconia Ceramic Foam Filter are 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.
1) 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.
2) Reduce castings manufacturing duration and the sword and tool damages, improve casting surface manufacturing quality
3) Strengthen castings anti-pressure and airproof features, strengthen elongate anti-resistance intensity, to improve surface glabrousness
4) 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. Custom-made cut-to-size filters are also possible.
*Purge solution steel casting
*Improve accepted rate of steel casting
*Reduce foreign matter of steel casting
*Drop twice oxided flaw
*Reduce second-face flaw after machine process
Technical Data for zirconia ceramic foam filter
*Pore size (PPi): 10, 20
*Porosity (%): 80-90
*Working temperature(Degree C): 1720
*Bending Strength (Mpa): 0.8-1.0
*Compression Strength (Mpa): 1.0-1.2
*Thermal Shock Resistance(times/1100Degree C): 6
| Working Temp | ≤ 1720 Degree C |
| Porosity | 70~85% |
| Compression Strength (Room Temperature) | ≥ 1.5Mpa |
| Volume Density | 1.3-1.5g/cm3 |
| Thermal Shock Resistance | 1100 Degree C to room temperature 5 times |
| Application | Stainless Steel, Alloy |
| Items | | | |
| Material | Alumina | Silicon Carbide | Zirconia |
| Color | White | Grey-black | Yellow |
| Applied Temp.( Degree C) | ≤ 1200 | ≤ 1500 | ≤ 1700 |
| Pore Size(PPi) | 8~50 | 8~50 | 8~50 |
| Porosity(%) | 80~90 | 80~90 | 80~90 |
| Bulk Density(g/cm3) | 0.35~0.55 | 0.45~0.65 | 1.0~1.5 |
| Compressive Strength(Mpa) | ≥ 0.8 | ≥ 1.0 | ≥ 1.5 |
| Application | Molten Aluminum and Alloy | Molten Cuprum, Iron and Alloy | Molten Stainless Steel, Alloy and other metal in precision molding |
| 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 |
