Ceramic Foam Filter for foundry iron casting molten metal:
Ceramic foam filter is just developed as a new type of molten metal filters to decrease casting flaw. It is made from high quality ceramic materials, whose main components are Al2O3, Sic, ZrO2, MgO etc. With the distributing pores net structure, they are able to increase the surface areas, and absorb the sinter, the liquid metal becomes more pure, waster quality problems such as sand pore and air pore are much less and the cast quality becomes much better. Ceramic Foam Filter is used for melted metal or alloys filtration in foundries and cast houses to eliminating impurities. The three-dimension structure can improve the cast quality in large scale by changing the molten metal from turbulence flow to lamellar flow, removing the gas and smoothing the casting. It is not only applied for molten metal filtering in high temperature, but gas treatment in high temperature, carrier of catalyzer, solid heat exchange and advanced filling for chemical industry.
We can supply ceramic foam filters are as follows:
*Silicon Carbide Ceramic Foam Filter is applied to purge and filter solution of ductile iron casting, grey iron and other iron casting
*Zirconia Ceramic Foam Filter is applied to purge and filter solution of steel high temperature metal such as steel alloy stainless steel etc
*Magnesia Ceramic Foam Filter is applied to purge and filter solution of magnesium and magnesium alloy
*Alumina Ceramic Foam Filter is applied to purge and filter solution of aluminium and aluminium alloys
Material including Al2O3, SiC, ZrO2, MgO
Shape in square, round, cylinder
Advantages:
*Good work strength under high temperature, good thermal shock resistance and melted metal inflow resistance
*High strength under room temperature, mechanic push resistance
*Obvious filter effect
*Ease the uneven inflow of casting, smooth the casting process, avoid surface defect
*Have a large and even melted inflow rate
*Good chemical stability, not affected by of melted meta, no change in its chemical compound
*Precise dimension and can be used in production line automatic filter mounting equipment
| Dimension (mm) | Pouring Rate (kg/s) | Filtration Capacity (kg) |
| 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 |
| Type | Alumina CFF | Silicon carbide CFF | Zirconia CFF | Magnesia CFF |
| Material | Al 2 O 3 | Sic | ZrO 2 | MgO |
| Applied temperature | ≤ 1200 º C | ≤ 1500 º C | ≤ 1700 º C | ≤ 1100 º C |
| Color | White | Grey black | Yellow | Yellow |
| Bulk Density | 0.35~0.55g/cm 3 | 0.45~0.65g/cm 3 | 1~1.5g/cm 3 | 0.5~0.7g/cm 3 |
| Bore Density | 10~60PPI | 10~60PPI | 10~60PPI | 10-60ppi |
| Porosity | 80~90% | 80~90% | 80~90% | 80-90% |
| Bending Strength | 0.6Mpa | 0.8Mpa | 0.8-1.0Mpa | 0.6Mpa |
| Compression Strength | ≥ 0.8Mpa | ≥ 1.0Mpa | ≥ 1.5Mpa | ≥ 0.8Mpa |
Thermal Shock Resistance
(1100 º C ~ Room Temperature) | Not break after 6 times thermal shock testing |
| Application | Molten Aluminum and Alloy | Molten Iron and Alloy | Molten Stainless Steel, Alloy and other metal in precision molding | Molten magnesium and its alloys |
