![\"Al\u00fcminyum](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/11\/Casting-Nozzle-for-Conveying-Aluminum-Liquid.jpg\")
<\/p>\nAl\u00fcminyum ala\u015f\u0131m\u0131 s\u00fcrekli d\u00f6k\u00fcm\u00fc i\u00e7in geli\u015ftirilmi\u015f bir y\u00f6ntem olup, bu y\u00f6ntemde erimi\u015f al\u00fcminyum ala\u015f\u0131m\u0131, yal\u0131t\u0131ml\u0131 bir d\u00f6k\u00fcm ucu nozulu arac\u0131l\u0131\u011f\u0131yla d\u00f6k\u00fcm nozulu s\u0131k\u0131\u015ft\u0131rma noktas\u0131n\u0131n giri\u015fine s\u00fcrekli olarak verilir. D\u00f6nen silindir ve d\u00f6k\u00fcm levha, silindirlerin aras\u0131ndan s\u00fcrekli olarak \u00e7ekilir. Y\u00f6ntemin karakteristik \u00f6zelli\u011fi, d\u00f6k\u00fcm levhas\u0131n\u0131n kal\u0131nl\u0131\u011f\u0131n\u0131n 4 ila 5,8 mm aral\u0131\u011f\u0131nda olmas\u0131 ve d\u00f6k\u00fcm h\u0131z\u0131n\u0131n 1,3 m\/dk'dan fazla olmas\u0131d\u0131r. Tercihen, d\u00f6k\u00fcm levhan\u0131n kal\u0131nl\u0131\u011f\u0131 4 ila 5 milimetre aral\u0131\u011f\u0131nda olup, d\u00f6k\u00fcm h\u0131z\u0131 dakikada 1,5 ila 1,9 metre aral\u0131\u011f\u0131ndad\u0131r.<\/p>\n
Disk malzemelerinin imalat\u0131nda tercih edilen ala\u015f\u0131mlar 5082, 5086 ve 5182\u2019dir. Ger\u00e7ekler, bu ala\u015f\u0131mlar\u0131n s\u00fcrekli olarak y\u00fcksek kalitede d\u00f6k\u00fclmesinin \u00f6zellikle zor oldu\u011funu kan\u0131tlam\u0131\u015ft\u0131r. Bu malzemelerden disk ham par\u00e7alar\u0131 \u00fcretmek i\u00e7in uygun bir teknoloji hen\u00fcz geli\u015ftirilmemi\u015ftir. Yaln\u0131zca dar kapsaml\u0131, pilot \u00f6l\u00e7ekte bir metal hacmi \u00fcretilmi\u015ftir. Buna ra\u011fmen, bu y\u00f6ntem hala ala\u015f\u0131m kimyas\u0131n\u0131n s\u0131k\u0131 bir \u015fekilde kontrol edilmesine dayanmaktad\u0131r ve bu da \u00fcretim ko\u015fullar\u0131 alt\u0131nda sa\u011flanmas\u0131 zor bir durumdur. Metaller aras\u0131 ayr\u0131\u015fma h\u00e2l\u00e2 bir sorun te\u015fkil etmektedir; \u00e7\u00fcnk\u00fc en b\u00fcy\u00fck par\u00e7ac\u0131klar, y\u00fczeyden \u00e7\u0131k\u0131nt\u0131 yapacak veya bo\u015fluklar b\u0131rakacak kadar b\u00fcy\u00fckt\u00fcr ve her iki durumda da elektrokimyasal i\u015flem s\u0131ras\u0131nda anot ve manyetik filmin olu\u015fumunu bozacakt\u0131r.<\/p>\n
En \u00f6nemlisi, bu ala\u015f\u0131mlar i\u00e7in mevcut al\u00fcminyum ala\u015f\u0131ml\u0131 s\u00fcrekli d\u00f6k\u00fcm teknolojisi, d\u00f6k\u00fcm \u015feritte tamamen homojen bir y\u00fczey yap\u0131s\u0131 olu\u015fturmamaktad\u0131r. D\u00f6k\u00fcm s\u00fcrecindeki dalgalanmalar, y\u00fczeyde d\u00fczensiz dalgalanmalar\u0131n ortaya \u00e7\u0131kmas\u0131na neden olabilecek p\u00fcr\u00fczlere yol a\u00e7abilir. D\u00f6k\u00fcm levhadaki bu homojen olmama durumu, performans\u0131n\u0131 iyile\u015ftirmek i\u00e7in y\u00fcksek s\u0131cakl\u0131kta tavlama i\u015flemi gerektirebilir.<\/p>\n
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Bilgisayar disklerinin \u00fcretiminde \u00f6zellikle sorun te\u015fkil etse de, al\u00fcminyum ala\u015f\u0131m\u0131 ba\u015fka ama\u00e7larla kullan\u0131ld\u0131\u011f\u0131nda, al\u00fcminyum ala\u015f\u0131m\u0131n\u0131n y\u00fczeyinde dalgalanmalar\u0131n ortaya \u00e7\u0131kmas\u0131 da b\u00fcy\u00fck bir sorundur. Al\u00fcminyumdaki ala\u015f\u0131m elementlerinin oran\u0131 yakla\u015f\u0131k 'i a\u015ft\u0131\u011f\u0131 bir\u00e7ok ala\u015f\u0131mda dalgalanma bir sorun olarak ortaya \u00e7\u0131kar. 1000 serisi d\u00f6vme al\u00fcminyum malzemeler genellikle bir sorun olarak g\u00f6r\u00fclmez. Bu d\u00f6vme al\u00fcminyum malzemeler, asl\u0131nda veya daha fazla al\u00fcminyum i\u00e7eren ticari saf al\u00fcminyumdur.<\/p>\n
S\u00fcrekli d\u00f6k\u00fcm al\u00fcminyum ala\u015f\u0131ml\u0131 saclardaki dalgalanmalar\u0131n nedeninin, d\u00f6k\u00fcm silindirinin y\u00fczeyindeki kirlenmelerle ilgili oldu\u011fu iyi bilinmektedir. Bu t\u00fcr kirletici maddeleri silindir y\u00fczeyinden s\u00fcrekli olarak kaz\u0131mak \u00fczere tel f\u0131r\u00e7alar tak\u0131larak dalgalanmalar\u0131n ortaya \u00e7\u0131kmas\u0131n\u0131n \u00f6nlenmesi i\u00e7in \u00e7aba g\u00f6sterilmi\u015ftir. Ancak bu y\u00f6ntem tatmin edici olmam\u0131\u015ft\u0131r; zira silindir y\u00fczeyindeki bu t\u00fcr mekanik a\u015f\u0131nma, d\u00f6k\u00fcm al\u00fcminyum levhan\u0131n silindir y\u00fczeyine yap\u0131\u015fmas\u0131na neden olarak levhaya ciddi hasar verebilir.<\/p>\n