{"id":8227,"date":"2021-12-27T03:48:56","date_gmt":"2021-12-27T03:48:56","guid":{"rendered":"https:\/\/www.aluminiumceramicfiber.com\/?p=8227"},"modified":"2021-12-27T03:48:56","modified_gmt":"2021-12-27T03:48:56","slug":"aluminum-alloy-refining-degassing","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/tr\/aluminum-alloy-refining-degassing\/","title":{"rendered":"Al\u00fcminyum Ala\u015f\u0131m\u0131n\u0131n Ar\u0131t\u0131lmas\u0131 ve Gaz Giderme"},"content":{"rendered":"

Al\u00fcminyum ala\u015f\u0131m\u0131n\u0131n ar\u0131tma ve gaz giderme i\u015flemi, \u00f6zellikle al\u00fcminyum ala\u015f\u0131m\u0131ndaki kal\u0131nt\u0131lar\u0131n ve gazlar\u0131n giderilmesini ifade eder. Bu i\u015flem genellikle e\u015fzamanl\u0131 olarak ger\u00e7ekle\u015ftirildi\u011finden, \u00fcretim s\u00fcrecinde bu i\u015fleme topluca \u201car\u0131tma\u201d denmesi yayg\u0131n bir uygulamad\u0131r.<\/p>\n

Y\u00fcksek gaz giderme verimlili\u011fi, kabarc\u0131klar ve kal\u0131nt\u0131lardan kaynaklanan israf\u0131 b\u00fcy\u00fck \u00f6l\u00e7\u00fcde azaltabilir ve \u00fcretimi \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131rabilir. \u00c7evrimi\u00e7i gaz giderme<\/a> \u00e7ok etkili bir hidrojen giderme y\u00f6ntemi olarak kabul edilir. Hidrojenin y\u00fcksek buhar bas\u0131nc\u0131 nedeniyle, \u00e7\u00f6z\u00fcnm\u00fc\u015f hidrojen enjekte edilen s\u0131v\u0131 al\u00fcminyumun i\u00e7ine dif\u00fcze olur. \u00c7ap\u0131 10 mikron olan kal\u0131nt\u0131lar kabarc\u0131klarla temas ettikten sonra, bu kabarc\u0131klar \u00fczerinde adsorbe olurlar ve s\u0131v\u0131n\u0131n y\u00fczeyine \u00e7\u0131karlar.<\/p>\n

\"Al\u00fcminyum<\/p>\n

Al\u00fcminyum ala\u015f\u0131m\u0131 kolayca oksitlendi\u011fi ve gaz emdi\u011fi i\u00e7in, eritme s\u00fcrecinin kontrol\u00fc daha karma\u015f\u0131kt\u0131r. Al\u00fcminyum ala\u015f\u0131m\u0131ndaki baz\u0131 ala\u015f\u0131m elementleri kolayca oksitlenir ve oksitlenmi\u015f kal\u0131nt\u0131lara neden olur. Bunlar\u0131n tam olarak giderilmemesi, mekanik \u00f6zelliklerin azalmas\u0131na yol a\u00e7ar. \u00dcretimde genellikle y\u00fczd\u00fcrme y\u00f6ntemi kullan\u0131l\u0131r; bu y\u00f6ntemde hava kabarc\u0131klar\u0131, oksitlenmi\u015f safs\u0131zl\u0131klar\u0131 ve par\u00e7ac\u0131klar\u0131 adsorbe ederek y\u00fczeye \u00e7\u0131kmalar\u0131n\u0131 sa\u011flar ve b\u00f6ylece ala\u015f\u0131m s\u0131v\u0131s\u0131 ar\u0131nd\u0131r\u0131l\u0131r.<\/p>\n

Ala\u015f\u0131m s\u0131v\u0131s\u0131n\u0131n emilmesinden kaynaklanan g\u00f6zenek olu\u015fumunu azaltmak amac\u0131yla, ala\u015f\u0131m\u0131n a\u015f\u0131r\u0131 \u0131s\u0131nmas\u0131n\u0131 \u00f6nlemek i\u00e7in eritme i\u015flemi s\u0131ras\u0131nda oksitleyici atmosferden ka\u00e7\u0131n\u0131lmal\u0131d\u0131r; ayr\u0131ca ar\u0131tma i\u015flemi, eritme s\u00fcresini k\u0131salt\u0131r ve y\u00fcksek s\u0131cakl\u0131kta kalma s\u00fcresini azalt\u0131r. Kullan\u0131lan hammadde ve aletler, nem, ya\u011f lekeleri ve pas\u0131n giderilmesi i\u00e7in tamamen \u00f6n \u0131s\u0131t\u0131lmal\u0131d\u0131r. Ayn\u0131 zamanda, eritme s\u00fcrecinde ar\u0131tma ve gaz giderme \u00f6nlemleri al\u0131nmal\u0131d\u0131r. Ayr\u0131ca, yeniden \u0131s\u0131tma malzemelerinin s\u0131k\u0131 bir \u015fekilde y\u00f6netilmesi gereklidir. Ayn\u0131 potada bile\u015fim a\u00e7\u0131s\u0131ndan b\u00fcy\u00fck farkl\u0131l\u0131klar g\u00f6steren ala\u015f\u0131mlar\u0131 eritmeyin. Al\u00fcminyum ala\u015f\u0131mlar\u0131 eritilirken bile\u015fen oranlar\u0131 do\u011fru olmal\u0131d\u0131r.<\/p>\n

\u00c7evrimi\u00e7i gaz giderme ekipman\u0131, esas olarak belirli miktarda hidrojen ve di\u011fer kal\u0131nt\u0131lar (alkali metaller, c\u00fcruf kal\u0131nt\u0131lar\u0131) i\u00e7eren erimi\u015f al\u00fcminyumu i\u015flemek i\u00e7in kullan\u0131l\u0131r.<\/strong><\/p>\n

\u00c7evrimi\u00e7i gaz giderme ekipman\u0131n\u0131n Al\u00fcminyum Ala\u015f\u0131m\u0131 Ar\u0131tma ve Gaz Giderme prensibi, hava flotasyonu prensibine dayanmaktad\u0131r. Proses gaz\u0131 (inert gaz veya inert gaz ile klor kar\u0131\u015f\u0131m\u0131), rotor arac\u0131l\u0131\u011f\u0131yla eriyik i\u00e7ine enjekte edilir; rotor, gaz\u0131 e\u015fit \u015fekilde da\u011f\u0131lm\u0131\u015f minik kabarc\u0131klar halinde par\u00e7alar ve bu minik kabarc\u0131klar eriyik i\u00e7inde yukar\u0131 do\u011fru y\u00fckselir. Y\u00fczeyde, minik kabarc\u0131klar y\u00fckseldi\u011finde hidrojen ve safs\u0131zl\u0131klar\u0131n giderilmesi i\u015flemi tamamlanm\u0131\u015f olur.<\/p>\n