Alumina ceramic foam filter is also called фильтрующая пластина из керамической пены, or aluminum casting filter. It can effectively remove the inclusions in the aluminum liquid, and absorb the micro-sized fine inclusion particles. Ceramic filter plates play an important role in the production of the aluminum alloy casting industry. It can improve surface quality, product performance, and microstructure, and improve the yield of aluminum.
Since 2012, AdTech company has been focusing on the research and development of highly absorbent alumina ceramic foam filter plates. Now, the technology of ceramic filters has been mature, and it is widely accepted in the market. Керамические пенопластовые фильтры are suitable for the filtration and purification of multiple series of aluminum alloy products, such as micron aluminum foil, PS board base for printing, flexible packaging materials, rail transportation, aerospace products, electrical cables, wires, etc.
Filter-alu

Керамический пенопластовый фильтр is a kind of high-absorption ceramic filter plate. It is between in the filter bowl for filtering impurities in molten aluminum alloy. Ceramic filters can meet the requirement of production in high-tech performance aluminum alloy.
Learn MoreFilter-PAl

AdTech ceramic foam filter -PAl takes reticular structure and organic foam as a carrier. Put it into the Al2O3 slurry, and the slurry evenly deposits in foam. After drying solidification, the carrier will turn into the final product under 1180°C. The ceramic filter is especially used for aluminum precision casting.
Learn MoreIf your project requires the use of cerami foam filter, you can contact us for a free quote.
Ceramic Foam Filter Dimension
| Specifications | Dimensional accuracy (mm) | Filtration area (m²) | Flow rate (kg/min) | Maximum flow rate of 40 mesh (t/h) |
|---|---|---|---|---|
| 12 inch | ±2 | 0.076 | 90-150 | 7 |
| 15 inch | ±2 | 0.123 | 140-290 | 10 |
| 17 inch | ±2 | 0.162 | 180-390 | 14 |
| 20 inch | ±2 | 0.228 | 270-510 | 20 |
| 23 inch | ±3 | 0.307 | 380-700 | 30 |
| 26 inch | ±3 | 0.397 | 450-950 | 40 |
| Product applications | PPI | Flow rate (t/h) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | ||
| Industrial aluminum ingots and extruded profile | 10 PPI | 12 | 15 | 17 | 20 | 20 | 23 | 23 | 26 | 26 | 26 | 26 |
| 20 PPI | 12 | 15 | 17 | 20 | 20 | 23 | 23 | 26 | 26 | 26 | 26 | |
| 30 PPI | 15 | 15 | 17 | 20 | 23 | 23 | 26 | 26 | 26 | 23*2 | 23*2 | |
| 40 PPI | 15 | 17 | 17 | 20 | 23 | 23 | 26 | 26 | 26 | 23*3 | 23*3 | |
| High-quality aluminum ingots and aerospace profiles | 30 PPI | 15 | 17 | 20 | 23 | 26 | 26 | 26 | 23*2 | 23*2 | 23*2 | 23*2 |
| 40 PPI | 15 | 17 | 20 | 23 | 26 | 26 | 26 | 23*2 | 23*2 | 23*2 | 23*2 | |
| 50 PPI | 15 | 17 | 20 | 23 | 26 | 26 | 26 | 23*2 | 23*2 | 23*2 | 23*2 | |
| 60 PPI | 17 | 20 | 23 | 23 | 26 | 26 | 23*2 | 23*2 | 23*2 | 23*2 | 26*2 | |
| 80 PPI | 17 | 20 | 23 | 23 | 26 | 26 | 23*2 | 23*2 | 23*2 | 23*2 | 26*2 | |
| Selected CFF size and quantity | ||||||||||||
Ceramic foam filter Pore Size(PPI):10/20/30/40/50/60/80
30ppi 40ppi Foundry Filter is the most commonly used ceramic foam filter in the aluminum casting industry.
Ordinary aluminum casting usually uses 10-40ppi ceramic filter plates.
Aviation and high-quality aluminum materials usually use 30-60ppi ceramic filter plates.
Alumina Ceramic Foam Filter Advantages
- Примените принцип адсорбции для фильтрации. Фильтр из керамической пены на основе оксида алюминия позволяет эффективно удалять крупные включения из расплава алюминия, а также эффективно адсорбировать мелкие включения размером в микроны. При одинаковом размере ячейки он обеспечивает высокую степень очистки.
- Не допускайте попадания шлака, чтобы эффективно снизить загрязнение расплавленного алюминия.
- Хорошая термоударная стойкость и коррозионная стойкость к воздействию расплавленного металла.
- Автоматизированное конвейерное производство, три этапа калибровки, точные размеры и другие преимущества, делающие данную модель более подходящей для фильтрующего блока.
- Повысить качество поверхности, эксплуатационные характеристики изделия и улучшить микроструктуру.
Production Process
AdTech керамический фильтр из пенообразного оксида алюминия plate uses organic foam as a carrier. These organic foams have a three-dimensional network structure. Put the foam carrier into a special ceramic slurry with thixotropic properties. Then the technician uses a special roller extrusion process, making the ceramic slurry uniformly coat on the carrier. After drying and curing, the final ceramic filter plate is fired at high temperatures. There are sealing linings around the ceramic filter plate. It is mainly used for the contact surface between the filter plate and the filter box to prevent the leakage of liquid aluminum through the contact surface. AdTech ceramic foam filter adopts three kinds of sealing gaskets of different materials: fiber paper, fiber cotton, and expanded cotton.


How to Use Ceramic Filter Plate
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- Clean the plate-type filtering box.
- Put the ceramic foam filter plate into the filtering box gently. Then press the sealing gasket around the filter plate by hand. To prevent the aluminum liquid from flowing sideways.
- Preheat the filter box and filter plate evenly. To make the temperature close to the temperature of molten aluminum. Pre-heating can remove moisture and facilitate instant filtration immediately. The preheating method can adopt electric or gas heating. Usually, preheating takes about 15-30 minutes.
- Pay attention to the aluminum hydraulic head during casting. The normal initial head is 100-150㎜. When the molten aluminum begins to pass, the head will drop below 75-100mm. And then the head will gradually increase.
- During the normal filtering process, avoid knocking and vibrating the filter plate. At the same time, the aluminum liquid should be full in the flow tank, to avoid too much disturbance.
- After filtering, remove the filter plate in time, and clean the filter box.