Ceramic Foam Filter
Zirconia Ceramic Foam Filters are used for filtration of all types of steel like unalloyed, low alloyed, stainless and high-alloyed. Filters are recommended especially for high quality grades of 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. They are the best choice for filtering of determined for filtering of steel and steel alloys up to the temperature of 1700℃.
Parameter
Zirconia ceramic foam filters are used to melt all types of steel such as non-alloy, low alloy, stainless steel and high alloy.
The basic material of zirconia ceramic foam filter is ZrO2. The heat resistance temperature higher than about 1760℃, and it has very high strength and excellent high-temperature impact resistance.
Cast steel parts are widely used in aspects that require high strength and elongation requirements. Therefore, cast steel parts are very sensitive to defects caused by impurities.
Zirconia ceramic foam filters have good resistance to attack and corrosion of liquid steel, can effectively remove inclusions in liquid metal, reduce trapped gas in liquid metal, and provide laminar flow, so that the filtered metal is significantly clean.
Cleaner metals lead to higher quality castings, less scrap and fewer inclusion defects. They are the best choice for filtering of determined for filtering of steel and steel alloys up to the temperature of 1700℃.
Filters are especially recommended for alloys of high quality grades.
The excellent characteristics of zirconia ceramic foam filter can effectively remove impurities that ultimately lead to product quality defects.
The impurities mainly consist of non-metallic particles, slag, and refractory material fragments. It improves the surface quality and mechanical properties of the casting parts, reduces the scrap rate.
Zirconia ceramic foam filter can make the molten steel fill the cavity more uniformly. During pouring, the molten metal has a higher tendency for turbulence, and the turbulence after passing through the three-dimensional pore structure of the zirconia foam ceramic filter is ultimately converted into a very stable laminar flow. The laminar flow has better filling properties for the cavity, thereby reducing the impact and corrosion of the molten metal solution on the casting cavity and significantly reducing the scrap rate.
Functions:
● Good filtration capacity
● Ideal for the filtration of high alloyed steel
● Filters can be preheated for investment casting application
● Improve casting qualification rate
● Improve the casting metallographic structure
Appearance:
● There should be no through-crack in the length direction (or diameter).
● Pore density deviation: ±3ppi
● Fine non-penetrating cracks are allowed, but the length of the continuous lines should not exceed 10mm.
● The product should not have slag phenomenon.
| Dimension deviation of side length or diameter | Thickness dimension deviation |
| ＜50mm:-1.5～0.5mm | ≤15mm:-1.0～0.5mm |
| ≥50mm:-2.0～0.5mm | ＞15mm：-2～0.5mm |
| ≥100mm: -2.5～0.5mm | ≥30mm:-3.0mm～0.5mm |
| ≤300mm:-3.5～0.5mm | |
| ＞300mm:-5mm～1.5mm |
Normal Specifications:
| Dimensions (mm) | Zirconia Ceramic Foam Filter | |
| Pouring Rate(kg) | Filtration Capacity(kg) | |
| 50×50×22 | 3~5 | 30 |
| 50×75×22 | 4~6 | 40 |
| 75×75×22 | 7~12 | 60 |
| 75×100×22 | 8~15 | 80 |
| 100×100×22 | 14~20 | 100 |
| Dia 50×22 | 2~6 | 18 |
| Dia 80×22 | 6~10 | 50 |
| Dia 90×22 | 8~16 | 70 |
Technical Data Sheet:
| Type | Zirconia ceramic foam filter for steel and high alloy |
| Color | Yellow |
| ZrO2(%) | 85-90 |
| Al2O3 (%) | 5-10 |
| SiO2(%) | ≤4 |
| MgO(%) | 4-5 |
| Porosity | 80-90% |
| Bulk Density | 0.8-1.5g/cm3 |
| Compressive strength | ≥1.5Mpa(Room temperature) |
| PPI | 10-40PPI(PPI=pores per inch) |
| Work Temperature | ≤1700℃ |
| Thermal shock resistance (Times/1100°C) | 6 |
| Certificate | ISO9001:2015 |
| REACH & RoHS |
Testing site of our Zirconia ceramic foam filter:
A Corner of our factory:
Quality Inspection:
Three most important key points that make our quality always best are:
● The most advanced testing equipment and technology are adopted today in Hebei Cangchen to ensure the consistant filters quality.
● There is a quality inspection team with rich experience and technology to keep best quality in our quality control department.
● Thanks to many years of product export and feedback information from domestic and foreign customers, we have accumulated considerable experience and expertise in quality control and improvement.
For now, Hebei Cangchen is a professional manufacturer with ISO certificate and our Zirconia ceramic foam filters have been passed RoHS And Reach test and certified.
Application:
Filtration of Molten Steel and Alloy
Large Scale Iron Casting
Investment casting
Filtration of all types of steel
Look forward to hearing from you:
Contact Us
+86 158 3011 4065
Guoruiyuan Building, ShengLi North Street, Chang'An District, Shijiazhuang City, Hebei Province, China.
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