Alumina ceramic foam filter plates with three Edge Covering and Side Cutting

Ceramic foam filter is just developed as a new type molten metal filters to decrease casting flaw and also as a catalyst carrier for Air Treatment in recent years, play a vital role in the metal casting and air treatment, where they are used to filter out impurities in molten metal to improve the quality and performance of the end product or decompose organic pollutants into pollution-free water (H2O) and carbon dioxide (CO2) to meet high environmental requirements.

Alumina foam ceramic filter plate is very important to the quality of aluminum melt, which affects the subsequent processing performance and the quality of final products to a great extent. Therefore, all countries in the world attach great importance to the purification of aluminum melt.

How to choose the suitable alumina Ceramic foam filter plate?

First of all, according to the impurity content of aluminum melt, melt transfer flow rate of the final casting product quality requirements.

● The plate with a large hole mesh can be chosed when a lot of impurities contained and normal quality of casting products required.

● New type plate with small holes can be selected when the quality requirements of casting products are high.

● HEBEI CANGCHEN Brand alumina ceramic foam filter plates adopt the organic bubble body with three-dimensional network structure and connected pores as the carrier, which is penetrated into the thixotropic alumina slurry, and adopts the automatic extrusion process with four square correction center distance, so that the slurry is evenly coated on the carrier bubble skeleton, and is roasted at 1180℃ after drying and curing. Installed in the filter box for aluminum alloy liquid impurities filtration, to meet the production of high value-added, high technical performance of aviation, transportation and other aluminum alloy precision casting. Such as: computer hard disk, printing with PS board base, can material, jet turbine engine fan blades and other products, to achieve the ideal cleanliness, to obtain good results.

● Depends on the flow rate and total amount of melt through.

Secondly, look at its color, shoot its body, burn its things during select the filter plate.

● The color is pure and no impurity that means the material is uniform; The hand is not sticky thatmeans the surface is not sprayed with binder, which will not cause secondary pollution.

Holding the filter plate with one hand and clapping with the other hand, if the ceramic particles continuously drop when beating the filter plate, it means that a poor quality filter plate, which will cause secondary pollution of liquid aluminum.

● Use an open flame or electric heating to burn red and make it cooled at room temperature immediately without cracking slag, it is a good filter plate.

Thirdly, The effective specific surface area or porosity calculation of the foam should be carefully evaluated when selecting.

● The mesh homogeneity of the surface layer of the filter plate can be observed, and then the mesh homogeneity of the cross section can be observed.

● If possible, the porosity can be measured by drainage method.

● The three-dimensional mesh is homogeneous, the porosity is relatively large, means it is an excellent foam ceramic filter plate.