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Address: No. 26, Dongqing Street, High-tech Zone, Zhengzhou ,Henan, China
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HENAN ZG INDUSTRIAL PRODUCTS CO.,LTD |
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Zirconia Ceramic Foam Filters
Zirconia Ceramic Foam Filters are used for molten all types of steel like unalloyed, low alloyed, stainless and high-alloyed as well as Nickel and Cobalt-based super-alloys.With their excellent resistance to attack and corrosion from molten steel liquid, they 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.
Zirconia Ceramic Foam Filters is available in all common sizes in the range of 40x40x20mm up to 150x150x30mm. Round filters are available from D40x20mm up to D150x30mm. Although PPI 10 is the porosity most commonly used for steel casting, finer porosities up to PPI 60 are available on request. Custom-made cut-to-size filters are also possible.
| Physical Properties for Zirconia Ceramic Foam Filters | |||
|---|---|---|---|
| Working Temperature | ≤1750°C | ||
| Porosity | 70~80% | ||
| Compression Strength (Room Temperature) | ≥1.5Mpa | ||
| Volume Density | 0.9-1.2g/cm3 | ||
| Thermal Shock Resistance | 1300°C--- room temperature 3 times | ||
| Application | cast steel industry, high temperature gas filter, chemical fillings and catalysis carrier etc. | ||
Zirconia Ceramic Foam Filters common sizes in Round shape
50x15mm, 0x20mm, 50x25mm, 60x15mm, 70x15mm, 70x25mm, 90x25mm, 100x25mm
Zirconia Ceramic Foam Filters common sizes in Square shape
50x50x15mm, 50x50x20mm, 75x75x25mm, 100x100x25mm
| Chemical Composition for Zirconia Ceramic Foam Filters | |||
|---|---|---|---|
| Al2O3 | ≤1.8% | MgO | ≥3.0% |
| SiO2 | ≤0.5% | ZrO2 | ≥94.00% |
| Fe2O3 | ≤0.10% | ||
Advantage
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.
| Filter type | Ceramic Foam Filters | Extruded Filter | ||
| Filter Materials | Alumina | SiC | Zirconia | Cordierite-Mullite |
| Applications | Aluminum and aluminum alloy | Iron, Iron alloy, copper, bronze and brass | Steel, Stainless steel and alloy | Grey iron, ductile iron, aluminum alloy and other non-ferrous alloys |
| Volume Density (g/cm3) | 0.4 - 0.5 | 0.3 - 0.5 | 0.7 - 1.0 | 0.8 - 1.2 |
| Hole Density (ppi) | 10 - 40 | 8-30 | 10-30 | 100 – 300 |
| Open Porosity (%) | 80 - 90 | 80 - 90 | 80 - 90 | 35 - 60 |
| Maximum Working Temperature (°C) | 1100 | 1500 | 1700 | > 1500 |
| Compressive Strength (MPa) | 0.8 | 1 | 1.5 | > 2 |
| Bending Strength (MPa) | 0.6 | 2.5 | 1 | |
| Thermal Shock Resistance (times from1100°C to room temperature) | 6 | 6 | 3 | 5 |
