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Light Gauge Foil Ceramic foam filter is set in the liquid aluminum filter box to remove the inclusions in the aluminum foil casting and rolling process. The filter is an aggregate mesh member made of refractory material, and a coating is formed on the surface of the mesh member.
Aluminum melt filtration is the use of filtration technology to reduce impurities and inclusions in the melt before casting and rolling. The quality of aluminum melt treatment will affect the product quality of ingot casting and rolling, and then affect the product quality of subsequent processing and materials. Therefore, the aluminum melt filtration technology is an important part of the production technology of aluminum processing materials.
The ceramic foam filter is a phosphorus-free high-aluminum-based product, which is characterized by high porosity, good mechanical and chemical stability, and excellent heat resistance and corrosion resistance to molten aluminum. In the laminar flow process, it provides laminar flow for filtering molten aluminum. During processing, it is processed to strict dimensional tolerances. The combination of physical properties and close tolerances makes it the first choice for molten non-ferrous metal filtration.
Removal of these inclusions will form a uniform melt, thereby ensuring the high quality of the product, especially in the casting of aluminum. At present, CFF molten aluminum filter has been widely used because of its strong thermal shock resistance, chemical corrosion resistance and mechanical stress resistance.
Therefore, in the case of using aluminum scraps of such aluminum alloy products as part or all of the aluminum raw material, it is necessary to remove the inclusions at least from the molten aluminum obtained by melting the aluminum raw material. Therefore, in addition to the refining process of degassing the molten aluminum using a flux, a filter is also used to remove the inclusions in the molten aluminum.
Light Gauge Foil Ceramic Filter purifies molten aluminum outside the furnace, which is an effective method to improve the cleanliness of molten aluminum.
The ceramic filtering process can effectively remove various inclusions in the molten aluminum with a fineness of micrometers, reduce the influence of inclusions on the quality of cast-rolled billets, and provide a basic guarantee for obtaining high-quality cast-rolled billets.
The clean quality of the ceramic filter plate to the molten aluminum is directly related to the amount of molten aluminum filtered by the ceramic filter plate. Therefore, in order to be able to process high-quality ultra-thin aluminum foil, the clean aluminum liquid must be used to produce the cast-rolled billet.
The aluminum foil cast-rolled billet between 261 and 551 produced after the new filter is used is the preferred billet for the production of ultra-thin aluminum foil.
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