{"id":7479,"date":"2021-01-12T07:49:29","date_gmt":"2021-01-12T07:49:29","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=7479"},"modified":"2021-01-12T07:49:29","modified_gmt":"2021-01-12T07:49:29","slug":"cffs-molten-aluminum-filtration","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/ar\/cffs-molten-aluminum-filtration\/","title":{"rendered":"CFFs Molten Aluminum Filtration"},"content":{"rendered":"

Ceramic foam filters (CFFs) molten aluminum filtration can not only effectively remove a large number of foreign impurities in molten aluminum, but also filter out fine inclusions of a few microns that cannot be removed by traditional processes.<\/p>\n

Hydrogen atoms and other harmful ions in molten aluminum are usually adsorbed on inclusions, and the inclusions can become the core of bubble formation. Therefore, while filtering out the inclusions, it can also reduce the content of these harmful elements and gases in the aluminum liquid. Some studies also believe that the filter disc will filter out many small inclusions, thereby reducing the effective crystal nuclei required for the solidification of molten aluminum. Under large undercooling conditions, it can promote the growth of aluminum cores, refine the structure, and improve product performance.<\/p>\n

\u0627\u0644\u0640 ceramic foam filter manufacturing<\/a> method is to immerse polyurethane sponge in ceramic mud, squeeze out the excess material and dry it. Finally, it is sintered at high temperature to form a three-dimensional porous ceramic material, which is a curved and interconnected tube with uneven thickness. It is this uneven tube wall that plays a key role in capturing the small inclusions in the aluminum melt. This structure also increases the chance of aluminum melt contacting the ceramic part of the filter, thereby increasing the possibility of inclusions being adsorbed.<\/p>\n

CFFs Molten Aluminium Filtration<\/strong><\/p>\n