Casting Ceramic Foam Filter | Adtech China

Fundición de aluminio, filtro de espuma cerámica, filtración metálica

8 de julio Filtro de espuma cerámica moldeada

Posted at 02:56h in Noticias by AdTech 0 Comments

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Casting Ceramic Foam Filter with structural characterization of specific reactions in pore size, pore distribution, pore shape and porosity;
The pore structure of the membrane is closely related to its filtration transfer performance. The pore size and pore size distribution are the most important parameters of the membrane structure, which directly affect the transfer characteristics of the fluid in the membrane and determine the separation and filtration performance of the membrane surface.

The quality of aluminum industrial Filtro de espuma cerámica in the smelting of aluminum melts is important, which greatly affects the subsequent processing properties and the quality of the final product.
Therefore, all countries in the world attach great importance to the purification of aluminum melt; there are many reasons for aluminum pollution. On the one hand, during the smelting process, aluminum is exposed to the furnace atmosphere in a molten or semi-molten state, which is prone to oxidation and easily reacts with water vapor. Hydrogen is easy to form various forms of non-metallic slag, as well as coarse intermetallic particles and the like.
Por otra parte, parte de los residuos presentes en la carga de composición contiene algunas impurezas distintas del aluminio durante la circulación. Dado que los residuos proceden de los desechos del proceso, de los residuos de los distintos procesos de la fábrica y de residuos externos a la misma, su procedencia es variada, su composición es compleja y su calidad también es deficiente.
Estas impurezas tienden a provocar la formación de burbujas e inclusiones en la plancha, lo que afecta gravemente a la pureza del metal fundido y, por consiguiente, repercute negativamente en las propiedades de procesamiento, las propiedades mecánicas, la resistencia a la corrosión y la calidad estética del producto.

Filtro de espuma cerámica moldeada can effectively remove all kinds of fineness in the aluminum water to the micron-sized inclusions, so that the aluminum water becomes a smooth laminar flow, which is favorable for filling.
It has a unique corundum structure, good mechanical strength and chemical stability, superior aluminum washability; tightly controlled hole size and through-hole ratio for stable filtration.
Ceramic Foam Filter is surrounded by a sealed ceramic fiber gasket, which helps the filter plate to seal in the filter box, ensuring no metal loss.
This product is mainly used in the purification process of aluminum and aluminum alloy production.

Correct selection of filtro de espuma cerámica to improve the cleanliness of aluminum melt
La elección de la placa filtrante de espuma cerámica se determina, en primer lugar, en función de la cantidad de impurezas presentes en el aluminio fundido, del nivel de calidad exigido para el producto fundido final y del caudal de transferencia del aluminio fundido.
1. The amount of impurities is high, and the quality of the cast product is general. The foam ceramic filter plate with larger mesh mesh can be selected, and a glass fiber cloth coarse filter is added in front of the ceramic filter plate. At this time, it is important to use a glass fiber cloth for coarse filtration in semi-continuous casting. It can intercept the slag and the slag washed by the launder when the eye is opened.
In order to prevent blockage of the filter plate.
2. The quality of cast products is high, and the new type of foam ceramic filter with small mesh size is selected. For example, AdTech ceramic filter plate adopts three-dimensional network structure and organic bubble body connected with pores as carrier. The intrusion into the thixotropy alumina material slurry is carried out by a four-square correction center distance automatic extrusion process, so that the slurry is uniformly applied to the carrier foam skeleton, and is baked and solidified at a high temperature of 1180 ° C. It is installed in the filter box for the impurity filtration of aluminum alloy liquid, and it can meet the high-value-added and high-tech aluminum alloy precision casting of aviation and transportation. Such as: computer hard disk, PS board base for printing, cans, jet turbine engine fan blades and other products, to achieve the desired cleanliness, get good results.
3. Las especificaciones de la placa filtrante vienen determinadas por el caudal y el rendimiento total de la masa fundida. Cuanto mayor sea el caudal y el rendimiento total, y cuanto más pequeños sean los orificios de la placa filtrante, mayor será el tamaño que se elija.

Select Casting Ceramic Foam Filter which should also look at its color, shoot its body, burn its contents.
1. The color is pure and no impurity, indicating that the material is uniform; the hand is not sticky, indicating that the surface is not sprayed with adhesive, and will not cause secondary pollution.
2. Sujeta la placa filtrante con una mano y, con la otra en posición de aplauso, dale un golpecito suave a la placa para que caigan continuamente los residuos de ceramsita; esto indica que se trata de una placa filtrante de mala calidad, lo que provocará una contaminación secundaria del aluminio fundido.
3. Calentar con llama abierta o con un calentador eléctrico hasta que adquiera un color rojo. Enfriar inmediatamente a temperatura ambiente sin que se produzcan grietas ni escoria, lo que indica que se trata de una placa filtrante en buen estado.

The effective specific surface area or porosity calculation of the foam should be carefully evaluated when purchasing the filter. The mesh surface homogenization state of the filter plate can be observed, and then the cross-sectional mesh homogenization state is observed. If possible, the porosity can be calculated by the drainage method. The three-dimensional mesh is homogeneous and the porosity is relatively large, which is an excellent foam ceramic filter plate.

AdTech Metallurgical Materials Co., Ltd.