![\"D\u00f6ner](\"https:\/\/aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/10\/Rotary-Degassing-Machines.jpg\")
<\/p>\nG\u00fcn\u00fcm\u00fczde, N\u2082 ve Ar gazlar\u0131n\u0131 ta\u015f\u0131y\u0131c\u0131 olarak kullanarak, az miktarda kirlilik i\u00e7ermeyen ar\u0131tma maddesi ekleyip, tek borulu, g\u00f6zenekli veya d\u00f6ner tip gaz giderme makineleriyle al\u00fcminyum s\u0131v\u0131s\u0131n\u0131 ar\u0131tmak, sanayile\u015fmi\u015f \u00fclkelerde yayg\u0131n olarak kullan\u0131lan geli\u015fmi\u015f bir ar\u0131tma teknolojisidir.<\/p>\n
Dinamik teoriye g\u00f6re, hava ge\u00e7irgenli\u011fi, g\u00f6zenek boyutu, kabarc\u0131k s\u0131kl\u0131\u011f\u0131 ve \u00fcfleme h\u0131z\u0131 aras\u0131nda belirli bir ili\u015fki vard\u0131r. Kabarc\u0131k s\u0131kl\u0131\u011f\u0131 ne kadar y\u00fcksekse, kabarc\u0131klar o kadar k\u00fc\u00e7\u00fck ve \u00e7ok say\u0131da olursa, dehidrojenasyon etkisi o kadar iyi olur; ancak kritik s\u0131kl\u0131\u011f\u0131n a\u015f\u0131lmas\u0131ndan sonra kabarc\u0131k olgusu ortaya \u00e7\u0131kar ve dehidrojenasyon etkisi azal\u0131r. Dehidrojenasyon kinetik ko\u015fullar\u0131 iki \u015fekilde \u00f6zetlenebilir: erimi\u015f al\u00fcminyumdaki bo\u015fluk oran\u0131 ve gaz-s\u0131v\u0131 iki fazl\u0131 temas alan\u0131. Bo\u015fluk oran\u0131 ve gaz-s\u0131v\u0131 temas alan\u0131 ne kadar b\u00fcy\u00fckse, dehidrojenasyon kinetik ko\u015fullar\u0131 o kadar iyidir.<\/p>\n
G\u00fcn\u00fcm\u00fczde \u00fcretimde yayg\u0131n olarak kullan\u0131lan d\u00f6ner gaz giderme makineleri aras\u0131nda k\u0131smi enjeksiyon (N\u2082, Ar tek borulu veya \u00e7ok delikli \u00fcfleme ba\u015fl\u0131\u011f\u0131) ve kesme alan\u0131 ile p\u00fcsk\u00fcrtme (N\u2082, Ar d\u00f6ner nozul) yer almaktad\u0131r. Gaz-s\u0131v\u0131 iki fazl\u0131 teoriye g\u00f6re, yerel enjeksiyon, al\u00fcminyum s\u0131v\u0131s\u0131n\u0131n yukar\u0131 ve a\u015fa\u011f\u0131 do\u011fru b\u00fcy\u00fck bir dairesel konveksiyona neden olur. Kabarc\u0131k bulutu pozitif bir konidir; koninin a\u00e7\u0131s\u0131 gaz ak\u0131\u015f\u0131yla birlikte artar ve s\u0131v\u0131 y\u00fczeyinin merkezi d\u0131\u015far\u0131 do\u011fru \u00e7\u0131k\u0131nt\u0131 yapar; bu \u00e7\u0131k\u0131nt\u0131, her kabarc\u0131\u011f\u0131n ka\u00e7mas\u0131yla bozulur. Merkez y\u00fczey emi\u015finde s\u0131v\u0131n\u0131n oksidasyonuna neden olmak kolayd\u0131r ve ar\u0131tma etkisi, d\u00f6ner p\u00fcsk\u00fcrtmeye g\u00f6re daha k\u00f6t\u00fcd\u00fcr.<\/p>\n
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Erimi\u015f al\u00fcminyumu i\u015flemek i\u00e7in d\u00f6ner gaz giderme makinelerinin kullan\u0131m\u0131, \u015fu anda erimi\u015f al\u00fcminyumu ar\u0131tmaya y\u00f6nelik d\u00fcnyan\u0131n en geli\u015fmi\u015f patentli teknolojisidir. N\u2082 veya Ar, y\u00fcksek h\u0131zl\u0131 d\u00f6nen noz\u00fcl arac\u0131l\u0131\u011f\u0131yla son derece k\u00fc\u00e7\u00fck kabarc\u0131klar halinde al\u00fcminyum s\u0131v\u0131s\u0131na verilir ve y\u00fcksek h\u0131zl\u0131 d\u00f6nme sayesinde bu k\u00fc\u00e7\u00fck kabarc\u0131klar al\u00fcminyum s\u0131v\u0131s\u0131 i\u00e7inde y\u00fcksek oranda da\u011f\u0131l\u0131r ve yay\u0131l\u0131r; g\u00f6zeneklilik y\u00fcksek ve gaz-s\u0131v\u0131 temas y\u00fczeyi geni\u015ftir; da\u011f\u0131t\u0131lan kabarc\u0131klar\u0131n y\u00fczeye \u00e7\u0131kmas\u0131, s\u0131v\u0131 y\u00fczeyini fazla bozmadan ve oksitlenme ile emilimi azaltarak hidrojen ve kal\u0131nt\u0131lar\u0131 erimi\u015f al\u00fcminyumun y\u00fczeyine ta\u015f\u0131r; b\u00f6ylece ar\u0131tma etkisi belirgin \u015fekilde artar.<\/p>\n