![\"\"](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/04\/Deep-Bed-Filter-1.jpg\")
<\/p>\nS\u0131v\u0131 metal filtreleri, CFF d\u00f6k\u00fcmhanesinin i\u00e7inde, al\u00fcminyum eritme f\u0131r\u0131n\u0131 ile \u00e7evrimi\u00e7i gaz giderme \u00fcnitesi aras\u0131nda yer almaktad\u0131r. Bu filtreler, ar\u0131tma sistemi ile kal\u0131p masas\u0131 aras\u0131nda olu\u015fan kal\u0131nt\u0131lar\u0131 gidermek i\u00e7in kullan\u0131l\u0131r. Metalin kat\u0131la\u015fma s\u00fcreci s\u0131ras\u0131nda, bu kal\u0131nt\u0131lar\u0131 yakalamak i\u00e7in seramik k\u00f6p\u00fck filtrenin s\u0131v\u0131 metal filtreleme kabiliyeti, k\u00fcl\u00e7enin temiz kalmas\u0131 a\u00e7\u0131s\u0131ndan hayati \u00f6nem ta\u015f\u0131r. Bu, d\u00f6vme, ekstr\u00fczyon ve haddeleme gibi sonraki i\u015flemlerin kalitesini ve verimlili\u011fini garanti eder.<\/p>\n
Geleneksel s\u00fcrekli d\u00f6k\u00fcm i\u015flemlerinde, al\u00fcminyum veya al\u00fcminyum ala\u015f\u0131mlar\u0131 bir f\u0131r\u0131nda eritilir ve ba\u015fka kaplar arac\u0131l\u0131\u011f\u0131yla s\u00fcrekli d\u00f6k\u00fcm makinesinin d\u00f6k\u00fcm haznesine aktar\u0131l\u0131r. Erimi\u015f al\u00fcminyumda, safs\u0131zl\u0131klar, ametal oksitler ve di\u011fer kat\u0131 kirleticiler \u015feklinde ba\u015fka metallerin oksitleri bulunur. Buna ek olarak, sistemin \u00e7e\u015fitli kaplar\u0131nda ve \u00e7evre ortam\u0131nda erimi\u015f al\u00fcminyum ile nemin reaksiyonu sonucu olu\u015fan gaz halindeki \u00fcr\u00fcnler, \u00f6zellikle hidrojen, genellikle erimi\u015f al\u00fcminyumda hapsolur veya \u00e7\u00f6z\u00fcn\u00fcr. D\u00f6k\u00fcmden \u00f6nce erimi\u015f metalden uzakla\u015ft\u0131r\u0131lmazlarsa, hem partik\u00fcl maddeler hem de gaz halindeki \u00fcr\u00fcnler, d\u00f6k\u00fcm metalde istenmeyen bo\u015fluklara ve kal\u0131nt\u0131lara neden olabilir. D\u00f6k\u00fcm metal daha sonra nihai \u00fcr\u00fcn\u00fc (s\u00fcrekli \u015fekillendirilmi\u015f \u00e7ubuklar ve teller gibi) \u00fcretmek \u00fczere i\u015flendi\u011finde, kal\u0131nt\u0131lar ve bo\u015fluklar s\u0131kl\u0131kla kusurlara neden olur; bu da i\u015flenmi\u015f \u00fcr\u00fcnde k\u0131r\u0131lmalara ve \u00e7atlaklara, zay\u0131f mekanik \u00f6zelliklere ve d\u00f6k\u00fcm\u00fcn elektrik iletkenli\u011finin azalmas\u0131na yol a\u00e7abilir.<\/p>\n
Yukar\u0131da bahsedilen zorluklar\u0131n \u00fcstesinden gelmeye y\u00f6nelik mevcut teknikte yer alan \u00f6neriler aras\u0131nda, ak\u0131 gaz\u0131 ge\u00e7irerek erimi\u015f metalden gaz halindeki hidrojeni uzakla\u015ft\u0131rmaya y\u00f6nelik bir\u00e7ok y\u00f6ntem ve ekipman bulunmaktad\u0131r. Ayr\u0131ca, metalin kal\u0131ba verilmesinden \u00f6nce erimi\u015f al\u00fcminyumdan kat\u0131 partik\u00fcl halindeki safs\u0131zl\u0131klar\u0131 gidermek i\u00e7in bir\u00e7ok filtreleme sistemi ve y\u00f6ntemi \u00f6nerilmi\u015ftir. Bilinen bir\u00e7ok \u00f6nceki teknik ak\u0131 ve filtreleme sistemi, erimi\u015f al\u00fcminyumun ak\u0131 gaz\u0131na ters ak\u0131\u015fla ge\u00e7ti\u011fi, al\u00fcmina bilyeleri gibi refrakter par\u00e7ac\u0131klardan olu\u015fan gev\u015fek bir yatak i\u00e7eren bir filtre ortam\u0131 kullan\u0131r.<\/p>\n
<\/p>\n
Ancak, mevcut teknikte kullan\u0131lan gran\u00fcl filtre malzemesiyle, filtrelenecek par\u00e7ac\u0131klar\u0131n boyutunu kontrol etmek kolay de\u011fildir ve filtre yata\u011f\u0131 s\u0131kl\u0131kla kanalla\u015fma sorunlar\u0131yla kar\u015f\u0131 kar\u015f\u0131ya kal\u0131r; bu da filtreleme verimlili\u011finin d\u00fc\u015fmesine ve s\u0131k s\u0131k t\u0131kanmaya yol a\u00e7ar. Elbette, t\u0131kanm\u0131\u015f bir filtre yata\u011f\u0131, filtre yata\u011f\u0131n\u0131n s\u00f6k\u00fcl\u00fcp de\u011fi\u015ftirilmesi i\u00e7in devre d\u0131\u015f\u0131 b\u0131rak\u0131lmal\u0131d\u0131r; ya da en az\u0131ndan, filtre yata\u011f\u0131n\u0131n yerinde temizlenmesi i\u00e7in d\u00f6k\u00fcm i\u015flemi kesintiye u\u011frat\u0131lmal\u0131d\u0131r.<\/p>\n