{"id":5240,"date":"2019-06-19T03:25:02","date_gmt":"2019-06-19T03:25:02","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=5240"},"modified":"2019-06-19T03:25:02","modified_gmt":"2019-06-19T03:25:02","slug":"aluminum-ingot-continuous-casting-degassing-aluminum-with-argon","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/tr\/aluminum-ingot-continuous-casting-degassing-aluminum-with-argon\/","title":{"rendered":"Al\u00fcminyum K\u00fcl\u00e7e S\u00fcrekli D\u00f6k\u00fcm\u00fcnde Argon ile Al\u00fcminyumun Gazdan Ar\u0131nd\u0131r\u0131lmas\u0131"},"content":{"rendered":"

Al\u00fcminyum K\u00fcl\u00e7e S\u00fcrekli D\u00f6k\u00fcm\u00fcnde Argon ile Al\u00fcminyumun Gazdan Ar\u0131nd\u0131r\u0131lmas\u0131<\/strong><\/p>\n

Argon gazl\u0131 d\u00f6ner \u00fcfleme ve argonlu al\u00fcminyum ala\u015f\u0131m\u0131 s\u0131v\u0131s\u0131 ile al\u00fcminyumdan gaz giderme i\u015fleminin temel prensibi nedir?
\nAzot gaz\u0131, d\u00f6ner gaz gidericinin grafit noz\u00fcl\u00fcnden d\u0131\u015far\u0131 p\u00fcsk\u00fcrt\u00fcl\u00fcr ve s\u0131v\u0131 al\u00fcminyumun i\u00e7inde yukar\u0131 do\u011fru y\u00fckselir.<\/p>\n

Al\u00fcminyumun Argon ile Gazdan Ar\u0131nd\u0131r\u0131lmas\u0131, erimi\u015f al\u00fcminyumun i\u00e7ine azot p\u00fcsk\u00fcrt\u00fclerek hidrojeni gidermeyi ama\u00e7lamaktad\u0131r.
\nBuna ek olarak, gaz giderme i\u015fleminin de safs\u0131zl\u0131klar\u0131 y\u00fczeye \u00e7\u0131karmak i\u00e7in olduk\u00e7a etkili bir y\u00f6ntem oldu\u011fu kabul edilmektedir.
\nGaz giderme ilkesini a\u00e7\u0131klamak i\u00e7in iki temel teorik model \u00f6ne s\u00fcr\u00fclm\u00fc\u015ft\u00fcr. Makro model, her bir safs\u0131z\u0131n giderilme s\u00fcrecinin do\u011fas\u0131 bak\u0131m\u0131ndan benzer oldu\u011funu varsayar. Mikroskobik modelde ise, bu teoriye g\u00f6re, hidrojenin daha y\u00fcksek buhar bas\u0131nc\u0131 nedeniyle, \u00e7\u00f6z\u00fcnm\u00fc\u015f hidrojen enjekte edilen s\u0131v\u0131 al\u00fcminyumun i\u00e7indeki gaza yay\u0131l\u0131r.
\nTeorik olarak, \u00e7ap\u0131 10 mikron olan bir inkl\u00fczyon bir kabarc\u0131kla temas eder, kabarc\u0131\u011f\u0131n \u00fczerine adsorbe olur ve s\u0131v\u0131n\u0131n y\u00fczeyine do\u011fru y\u00fczer.<\/p>\n

Grafit noz\u00fclden yeni \u00e7\u0131kan azot kabarc\u0131\u011f\u0131 i\u00e7indeki hidrojen k\u0131smi bas\u0131nc\u0131 0\u2019d\u0131r. Azot y\u00fczeye \u00e7\u0131kt\u0131\u011f\u0131nda, hidrojen bas\u0131n\u00e7 fark\u0131n\u0131n itici g\u00fcc\u00fcyle hidrojen, s\u0131v\u0131 al\u00fcminyumdan azot kabarc\u0131\u011f\u0131na dif\u00fcze olur ve bu s\u00fcre\u00e7, azot kabarc\u0131\u011f\u0131 i\u00e7indeki hidrojen k\u0131smi bas\u0131nc\u0131 ile s\u0131v\u0131 al\u00fcminyum i\u00e7indeki hidrojen k\u0131smi bas\u0131nc\u0131 dengelenene kadar devam eder; bu noktada azot faz\u0131 durur ve ard\u0131ndan azot gaz\u0131 y\u00fczeye \u00e7\u0131karak uzakla\u015ft\u0131r\u0131l\u0131r, b\u00f6ylece gaz giderimi ger\u00e7ekle\u015ftirilir.<\/p>\n

Azot ar\u0131tma s\u00fcrecinde d\u00f6ner noz\u00fcl\u00fcn iyile\u015ftirilmesi yoluyla argon kabarc\u0131klar\u0131 kullanarak al\u00fcminyumun gazdan ar\u0131nd\u0131r\u0131lmas\u0131 ve argon ile al\u00fcminyum aras\u0131ndaki temas alan\u0131n\u0131n art\u0131r\u0131lmas\u0131, b\u00f6ylece gazdan ar\u0131nd\u0131rma ve c\u00fcruf giderme etkisinin iyile\u015ftirilmesi ve al\u00fcminyum ar\u0131tma amac\u0131na ula\u015f\u0131lmas\u0131 sa\u011flanm\u0131\u015ft\u0131r. \u00dcr\u00fcn kalitesinin iyile\u015ftirilmesi.<\/p>\n

Argon ile Al\u00fcminyumun Gazdan Ar\u0131nd\u0131r\u0131lmas\u0131n\u0131n anahtar\u0131, rotorun gelen Argon kabarc\u0131klar\u0131n\u0131 k\u00fc\u00e7\u00fck kabarc\u0131klara ay\u0131rabilmesi ve bunlar\u0131 erimi\u015f metalin her yerine yayabilmesidir. Kabarc\u0131k \u00e7ap\u0131n\u0131n k\u00fc\u00e7\u00fclt\u00fclmesiyle argonun y\u00fczey alan\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde artar; b\u00f6ylece daha fazla argon y\u00fczeyi erimi\u015f metaldeki hidrojen ve safs\u0131zl\u0131klarla temas eder ve kabarc\u0131klar y\u00fczeye \u00e7\u0131karken hidrojen veya safs\u0131zl\u0131klar al\u00fcminyum s\u0131v\u0131s\u0131ndan uzakla\u015ft\u0131r\u0131l\u0131r.<\/p>\n

Al\u00fcminyum Argon sistemine y\u00f6nelik ak\u0131\u015f kontrol\u00fc, i\u015flenmekte olan metal s\u0131v\u0131s\u0131n\u0131n hacmine g\u00f6re gaz\u0131n ak\u0131\u015f h\u0131z\u0131n\u0131 ayarlayabilir; ayr\u0131ca, inert gaz\u0131n dif\u00fczyonunu kolayla\u015ft\u0131rmak \u00fczere uygun boyutta bir kabarc\u0131k olu\u015fturmak i\u00e7in d\u00f6nen \u00e7ubu\u011fun ve rotorun h\u0131z\u0131 ayarlanabilir.<\/p>\n

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

Reklam Teknolojisi \u00c7EVR\u0130M\u0130\u00c7\u0130 GAZ G\u0130DERME \u00dcN\u0130TES\u0130<\/a> Talimat
\nKutu \u0131s\u0131tma i\u015fleminin gaz giderme a\u015famas\u0131 tamamland\u0131ktan sonra \u0131s\u0131tma \u00fcnitesini kapat\u0131n. Is\u0131t\u0131c\u0131n\u0131n s\u0131cakl\u0131\u011f\u0131 erimi\u015f al\u00fcminyumun s\u0131cakl\u0131\u011f\u0131na yakla\u015ft\u0131\u011f\u0131nda, rotora inert gaz verin ve erimi\u015f al\u00fcminyumu kutuya bo\u015falt\u0131n.
\nGiri\u015f\/\u00e7\u0131k\u0131\u015f ile oluk aras\u0131ndaki s\u0131zd\u0131rmazl\u0131\u011f\u0131 kontrol edin.
\nAlt k\u0131s\u0131mda bulunan \u0131s\u0131 koruma tahliye kanal\u0131ndaki koniyi kontrol edin.
\nErimi\u015f al\u00fcminyumun s\u0131cakl\u0131\u011f\u0131n\u0131 kontrol edin (en az 720 \u00b0C). Erimi\u015f al\u00fcminyumun kal\u0131ba giri\u015fini g\u00f6zlemleyebilmek i\u00e7in, erimi\u015f al\u00fcminyumun oluk taban\u0131ndan uzakl\u0131k y\u00fcksekli\u011fini 3 cm olarak ayarlay\u0131n.
\nOperat\u00f6r, kapa\u011f\u0131 kapat\u0131rken koruyucu giysiler giymelidir. Erimi\u015f al\u00fcminyum kutuya akt\u0131\u011f\u0131nda, y\u00fczeydeki c\u00fcruf, c\u00fcruf tahliye deli\u011finden s\u0131y\u0131r\u0131labilir.
\nS\u0131cakl\u0131k 780 \u00b0C\u2019ye ula\u015ft\u0131\u011f\u0131nda \u00fcretime ba\u015flay\u0131n. Is\u0131n\u0131n korunmas\u0131 i\u00e7in c\u00fcruf tahliye \u00e7\u0131k\u0131\u015f\u0131n\u0131 kapat\u0131n.
\nIs\u0131 koruma a\u015famas\u0131nda, erimi\u015f al\u00fcminyum, ayarlanan s\u0131cakl\u0131kta kutu i\u00e7inde tutulabilir; ancak bu a\u015famada erimi\u015f al\u00fcminyumla herhangi bir i\u015flem yap\u0131lmaz.
\nErimi\u015f al\u00fcminyumun hava \u00e7\u0131k\u0131\u015f\u0131n\u0131 t\u0131kamas\u0131n\u0131 \u00f6nlemek i\u00e7in inert gazlar\u0131 rotora y\u00f6nlendirin.
\nErimi\u015f al\u00fcminyumun kutuya ak\u0131\u015f\u0131 tamamlan\u0131r tamamlanmaz \u0131s\u0131t\u0131c\u0131y\u0131 \u00e7al\u0131\u015ft\u0131r\u0131n ve \u0131s\u0131 koruma parametrelerini ayarlay\u0131n.
\nIs\u0131tma sistemi \u00e7al\u0131\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, erimi\u015f al\u00fcminyumun s\u0131cakl\u0131\u011f\u0131 kontrol edilir, gaz ak\u0131\u015f h\u0131z\u0131 izlenir ve rotorun h\u0131z\u0131, \u0131s\u0131 koruma a\u015famas\u0131ndan i\u015fleme a\u015famas\u0131na ge\u00e7ecek \u015fekilde ayarlan\u0131r. Ayn\u0131 zamanda, rotora giren inert gaz ak\u0131\u015f\u0131 artar ve gaz ak\u0131\u015f h\u0131z\u0131 da koruma a\u015famas\u0131ndan i\u015fleme a\u015famas\u0131na ge\u00e7ecek \u015fekilde ayarlan\u0131r.
\nOperat\u00f6r, erimi\u015f al\u00fcminyumun \u0131s\u0131tma s\u0131cakl\u0131\u011f\u0131n\u0131 ayarlar ve gaz giderme i\u015fleminin istikrarl\u0131 bir \u015fekilde devam etmesini sa\u011flar.<\/p>\n