porous ceramic filter def

AdTech Metallurgical Materials Co., Ltd.的多孔陶瓷过滤器自2012年以来一直专注于铝合金铸造用粘合泡沫陶瓷过滤器（CFF）的研发、生产和销售。

The technology of AdTech porous ceramic filter has been widely approved by the market and applied for producing multiple series of aluminum alloys products, such as PS baseboard for printing, canning materials, flexible packaging materials, railway vehicles, aerospace products, cables, electrical wires and other high-precision filtration and purification for casting aluminum alloy.

Application for porous ceramic filter

AdTech Al2O3 Foam Foundry Filter is produced based on the carrier with solid reticular structure and combined organic foam pores. The producing procedure is as below, put the carrier into the thixotropic alumina slurry, adopt square to center correcting automatic extrusion process, so that slurry evenly deposits in the foam skeleton of the carrier, after drying solidification, the carrier will turn into the final product by roasting formed under 1180 ℃ high temperature. A filter is installed in the filter bowl for filtrating impurity in molten aluminum alloy, which helps to meet the requirement of production in high value-added, high-tech performance aluminum alloy precision casting, such as computer hard drive, PS baseboard for printing, canning materials, fan blades for turbojet engine, etc.

Advantages of porous ceramic filter

Adopt the adsorption principle for the filter, can effectively remove big piece inclusions in molten aluminum, and effectively adsorb tiny inclusions.

No broken bits drop out, effectively reducing the pollution of molten aluminum.

Superior thermal shock resistance improves the erosion resistance ability of molten metal.

Automatic flow production，3 calibration procedures， and precision size fit the filter bowl tightly.

Improve the surface appearance and performance, and purify molten aluminum.

porous ceramic filter is installed and used. In general, the following aspects need to be noted

1. Use the filter plate correctly:

The size of the filter plate and the number of holes must be selected in consideration of the flow rate range of the specific casting type, the maximum liquid level of the metal during filtration, the total filtration amount, and the cleanliness of the original aluminum liquid.

2. Pre-melt filtration treatment can not be ignored:

Such as molten aluminum furnace and holding furnace normal slag, cleaning furnace; furnace refining. In particular, an in-line degassing device is still necessary because it not only reduces the hydrogen content of the melt but also removes some of the non-metallic inclusions.

3. The filter plate must be compatible with the square refractory block:

两者采用密封，防止金属未经过滤就从缝隙流入铸箱，也避免泡沫滤板因重量过轻而无法漂浮在铝水中。

4、使用前预热：

预热以去除水分并促进初始瞬时过滤。可以使用电加热或气体加热来进行预热。在正常情况下，大约需要 15 分钟。

5、正常过滤时，不需结渣，以免敲击和振动滤板。同时，洗涤槽内要注满铝水，以免对铝水有过多的顾虑。

6. 浇铸后，将流通池和滤板中的金属排干。国外有一种振动器，放在滤板上，振摇一分钟，可将滤板上剩余的液态金属约75%抖掉。

7、最后清理周边，待固化后取下滤板。

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