What is Aluminium Ceramic Filter Plates and Why Do We Use Them?

CangChen Alumina foam ceramics is a kind of foam material made from high-purity alumina. The foam ceramics have the characteristics of uniform porosity, high-temperature resistance, heat shock resistance, wear resistance and chemical stability. Aluminium Ceramic Filter Plates are widely used in casting processing, water treatment, chemical industry, environmental protection and other industries. Is the ideal liquid aluminum filter; catalytic support, and good sound insulation, and thermal insulation material. Product shapes, sizes, and voids of PPI can be designed and manufactured on request.

If you are looking for more details, kindly visit HEBEI CANGCHEN.

Regular Size:

DimensionToleranceThicknessRake AngleTortuosityDiagonal Line 12"/305mm  ±3mm  50mm±1mm  17.5°＋1°  Max.4mm ＜1% of side length 15"/381mm  ±3mm  50mm±1mm  17.5°＋1°  Max.4mm ＜1% of side length 17"/432mm  ±3mm  50mm±1mm  17.5°＋1°  Max.4mm ＜1% of side length 20"/508mm  ±4mm  50mm±1mm  17.5°＋1°  Max.4mm ＜1% of side length 23"/584mm  ±4mm  50mm±1mm  17.5°＋1°  Max.4mm ＜1% of side length

*Remarks: There are no cracks and obvious defects on the surface, no slag, and sealing cotton around it, the thickness is 7mm-10mm.

Physical performance indicators:

ColorWhiteEdge CoveringAsbestos---NormalExpanded Vermiculite---SuperiorPPI10/20/30/40/50/60(Customized)AL2O3 Content  ≥83％ Porosity ≥85％ Proportion 0.3g/cm³-0.45g/cm³ Refractory temperature ≥℃ Bending strength ＞0.5Mpa Thermal shock resistance 750℃/5times SolubilityUnder the temperature of metal aluminum and aluminum alloy solution, the filter equipment will not chemically react with the solution and dissolve.CertificateISO:REACH & RoHS 

CangChen is a leading manufacturer and factory specializing in the production of Aluminium Ceramic Filter Plates. With years of experience and expertise in the industry, we have established ourselves as a trusted supplier of high-quality filter plates that meet the diverse needs of our clients.

If you are looking for a reliable and reputable manufacturer and factory of Aluminium Ceramic Filter Plates, look no further than CangChen. Contact us today for more details about our products, specifications, and parameters. Our team is ready to assist you with any questions or concerns you may have and help you find the perfect solution for your filtration needs.

What can Alumina Ceramic Foam Filter Plates do?

● Alumina foam ceramic filter plate can effectively remove all kinds of inclusions with fineness up to micron level in aluminum liquid, making aluminum liquid into a steady laminar flow, which is conducive to filling. 

● It has a unique mullite-corundum structure, good mechanical strength and chemical stability, and excellent resistance to aluminum liquid erosion performance.

● It can obtain a stable filtration effect by strict control of hole size and through hole rate.

● The ceramic foam filter plate is surrounded by a sealing ceramic fiber liner, which facilitates the seal of the filter plate in the filter box to ensure that there is no metal liquid side.

● A selection range of 10ppi coarse porosity to 40ppi very fine porosity.

The other applications of Alumina foam ceramic filter plate:

1. Copper alloy casting filtration, 

In the casting process, Non-ferrous metal melt (brass, bronze, zinc, tin) also will generate oxidation, non-metallic debris and a large number of waste products. It can greatly reduce the rate of scrap if use foam ceramic filter plate. 1.0 ~ 1.2mm mesh with cordierite material is the best choice for the filtration of copper alloy.

2. Catalyst carrier for vehicle exhaust purification processor,

The foam ceramics have been widely used as the carrier of automobile exhaust catalytic purifiers because of their large surface area, good thermal stability, wear resistance, resistance to poisoning and low density. 

The foam ceramic automobile exhaust catalytic purifier installed in the exhaust pipe of the gasoline car can make the harmful gas CO, HC, and NOx discharged from the gasoline car into CO2, H2O, and N2, and the conversion rate can reach more than 90%; Used in diesel vehicles, carbon particle purification rate in more than 50%. When the foam ceramic filter element is full of carbon particles, the catalytic oxidation method or electronic combustion method can be used to regenerate, and constantly eliminate the deposited carbon particles, to achieve the purpose of long-term use.

3. In special fields,

The other applications under high-temperature conditions, foam ceramics have excellent thermal radiation characteristics, which are used to enhance heat transfer and combustion technology in porous media with remarkable results. Foam ceramic can also be made into a photocatalyst carrier, coated with nano titanium dioxide on the foam ceramic carrier, excited by ultraviolet light, has strong photocatalytic oxidation and degradation characteristics, can catalyze the degradation of organic matter and microorganisms, to purify the air. Foam ceramics can also be made into chemical tower packing, gas distribution materials, and gas stove energy-saving combustion plates.

Ceramic foam filter plates are essential in many industries for filtering molten metals. They are primarily used in the aluminum industry to improve the quality of aluminum products. In this guide, we'll explore the different types of ceramic foam filter plates, their characteristics, and how to use them effectively.

Types of Ceramic Foam Filter Plates

Ceramic foam filter plates are available in three main types based on their composition:

1. Alumina Ceramic Foam Filter Plates: These filters are widely used for aluminum casting due to their excellent ability to remove large inclusions and absorb fine particles.  

2. Silicon Carbide Ceramic Foam Filter Plates: Designed for filtering cast iron, they are durable and withstand high temperatures.  

3. Zirconia Ceramic Foam Filter Plates: Zirconia filters are suitable for high-temperature alloys like steel, as they maintain structural integrity under extreme heat.

Key Features of Alumina Ceramic Foam Filters

- High Efficiency: Alumina ceramic foam filters can effectively remove large inclusions in molten aluminum and absorb micron-sized particles.  

- Enhanced Product Quality: These filters improve surface quality, product performance, and yield by creating cleaner aluminum profiles, foil, and alloys.  

- Homogeneous Structure: Alumina ceramic foam filters have a 3D solid network homogeneous bone structure that ensures consistent filtration.

Step-by-Step Instructions for Using Ceramic Foam Filter Plates

1. Clean the Filter Box  

Before using the ceramic foam filter plate, ensure that the filter box is thoroughly cleaned to prevent contamination.

2. Place the Filter Plate in the Box  

Gently place the ceramic foam filter plate into the filter box. Press the sealing gasket around the filter plate to ensure that no molten aluminum flows by the filter.

3. Preheat the Filter and Equipment  

Preheat both the filter box and the ceramic foam filter plate to a temperature close to the molten aluminum. Preheating is essential to remove moisture and ensure effective filtration. This can be done using electric or gas heating, and typically takes 15–30 minutes.

4. Monitor the Aluminum Hydraulic Head  

During casting, pay close attention to the change in the aluminum hydraulic head. The initial pressure head should be 100–150 mm. When the aluminum starts to flow through, the pressure head will drop to 75–100 mm and then gradually increase.

5. Avoid Disturbing the Filter During Filtration  

Ensure that the ceramic foam filter plate is not knocked or vibrated during the filtration process. Additionally, maintain a steady flow of aluminum in the launder to avoid disturbing the molten metal.

6. Clean the Filter Box After Filtration  

Once filtration is complete, remove the ceramic foam filter plate and clean the filter box thoroughly to maintain cleanliness for future use.

Conclusion

Using ceramic foam filter plates is a straightforward yet essential process for ensuring high-quality metal casting. Whether you're using alumina, silicon carbide, or zirconia filters, proper installation and maintenance are crucial for effective filtration and optimal product performance.

For any further inquiries or if you're looking for a reliable supplier, feel free to contact us today!