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Alumina Foam Ceramic Filter
2022-09-08

All countries in the world attach great importance to the purification of aluminum melt. Alumina foam ceramic filter plates are mainly used in the purification process of aluminum and aluminum alloy production. The quality of aluminum melt is the most important in smelting, which greatly affects the subsequent excellent processability and quality of the final product.

The alumina foam ceramic filter plate can effectively remove all kinds of inclusions in the aluminum water with a fineness of microns, so that the aluminum water becomes a stable laminar flow, which is conducive to filling. Strictly controlled pore size and porosity can achieve stable filtration effects. The foam ceramic filter plate is surrounded by a sealing ceramic fiber liner, which helps to seal the filter plate in the filter box and ensures that there is no bypass flow of molten metal.

ceramic filter plates

Other Applications of Alumina Foam Ceramic Filter:

For copper alloy casting and filtering, the non-ferrous metal melt will also produce oxidation and non-metallic debris during the casting process, resulting in a large number of waste products. If the foam ceramic filter plate is used, the waste production rate can be greatly reduced. Cordierite is usually used for filtering copper alloy melt, and the mesh size is 1.0-1.2mm.

Catalyst Substrate for Automobile Exhaust Gas Purification Processor:

With the continuous development of my country’s automobile industry, automobile exhaust emissions have become the main source of environmental pollution. Because of their large specific surface area, good thermal stability, wear resistance, not easy to be poisoned, and low density, foam ceramics have been widely used as the carrier of automobile exhaust gas catalytic purifiers.

The foam ceramic automobile exhaust gas catalytic purifier is installed in the exhaust pipe of the gasoline vehicle, which can convert the harmful gases of CO, HC and NOx discharged from the gasoline vehicle into CO2, H2O, N2, and the conversion rate can reach more than 90%.

When used in diesel vehicles, the purification rate of carbon particles is above 50%. When the foam ceramic filter element is full of carbon particles, it can be regenerated by the catalytic oxidation method or electronically controlled combustion method to continuously eliminate the deposited carbon particles and achieve the purpose of long-term use.

Special Fields

In high-temperature conditions, foam ceramics have excellent thermal radiation characteristics, and are used in the combustion technology of strengthening heat transfer and porous media, with remarkable effects.

Foamed ceramics can also be made into photocatalyst carriers. Nano-titanium dioxide is coated on the foamed ceramics carriers. When excited by ultraviolet rays, it has strong photocatalytic oxidation degradation characteristics, which can catalyze the degradation of organic substances and microorganisms, thereby purifying the air.

Foam ceramics can also be made into chemical tower packing, gas distribution material, gas stove energy-saving combustion board, etc.