![\"Erimi\u015f](\"https:\/\/aluminiumceramicfiber.com\/wp-content\/uploads\/2021\/08\/Molten-Aluminum-Burning-Loss.jpg\")
<\/p>\nElektrolitik h\u00fccreden b\u00fcy\u00fck miktarda s\u0131v\u0131 al\u00fcminyum vakumlu kep\u00e7eye emilir ve kar\u0131\u015ft\u0131rma f\u0131r\u0131n\u0131na enjekte edilmek \u00fczere d\u00f6k\u00fcmhaneye ta\u015f\u0131n\u0131r. S\u0131v\u0131 al\u00fcminyum kar\u0131\u015ft\u0131r\u0131l\u0131p \u00e7alkaland\u0131ktan, c\u00fcruf ayr\u0131\u015ft\u0131rma ve gaz giderme i\u015flemlerinden ge\u00e7irildikten ve kimyasal bile\u015fim kontrol\u00fcnden ge\u00e7tikten sonra, al\u00fcminyum k\u00fcl\u00e7eler halinde d\u00f6k\u00fcl\u00fcr veya haddelenir. Al\u00fcminyum levhalar, yuvarlak k\u00fcl\u00e7eler, k\u00fct\u00fckler veya di\u011fer \u015fekillerde bitmi\u015f ya da yar\u0131 mamul \u00fcr\u00fcnler. D\u00f6k\u00fcm \u00fcretim s\u00fcrecinde, eritme, ar\u0131tma, c\u00fcruf olu\u015fumu, oksidasyon vb. gibi bir\u00e7ok fakt\u00f6r nedeniyle erimi\u015f al\u00fcminyumda \u00e7e\u015fitli derecelerde yanma kayb\u0131 meydana gelir. D\u00f6k\u00fcm s\u00fcrecinde erimi\u015f al\u00fcminyumun yanma kayb\u0131n\u0131 kontrol etmek, metal kayb\u0131n\u0131 azaltmak, i\u015fletmelerin \u00fcretim h\u0131z\u0131n\u0131 art\u0131rmak ve iyi ekonomik sonu\u00e7lar elde etmek a\u00e7\u0131s\u0131ndan \u00e7ok \u00f6nemlidir.<\/p>\n
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Erimi\u015f al\u00fcminyumun oksidatif yanma kayb\u0131n\u0131 etkileyen ba\u015fl\u0131ca fakt\u00f6rler, erimi\u015f al\u00fcminyumun s\u0131cakl\u0131\u011f\u0131, oksijen i\u00e7eri\u011fi ve erimi\u015f al\u00fcminyum ile hava aras\u0131ndaki temas s\u00fcresidir.<\/p>\n
(1) Elektroliz at\u00f6lyesinden gelen erimi\u015f al\u00fcminyumun s\u0131cakl\u0131\u011f\u0131 \u00e7ok y\u00fcksektir. Al\u00fcminyumun erime noktas\u0131 660 \u2103\u2019dir; elektroliz h\u00fccresinden vakumlu kep\u00e7eye emilen ham al\u00fcminyum s\u0131v\u0131s\u0131n\u0131n s\u0131cakl\u0131\u011f\u0131 yakla\u015f\u0131k 950 \u2103\u2019dir, s\u0131v\u0131 al\u00fcminyumun kar\u0131\u015ft\u0131rma f\u0131r\u0131n\u0131na enjekte edildi\u011fi andaki s\u0131cakl\u0131k yakla\u015f\u0131k 850 \u2103'dir ve d\u00f6k\u00fcm s\u0131cakl\u0131\u011f\u0131 ise 690 ila 730 \u2103 aras\u0131ndad\u0131r. F\u0131r\u0131ndaki erimi\u015f al\u00fcminyumun s\u0131cakl\u0131\u011f\u0131 ile d\u00f6k\u00fcm s\u0131cakl\u0131\u011f\u0131 aras\u0131nda yakla\u015f\u0131k 150\u00b0C'lik bir a\u015f\u0131r\u0131 \u0131s\u0131nma fark\u0131 bulunmaktad\u0131r. Bu kadar y\u00fcksek derecede a\u015f\u0131r\u0131 \u0131s\u0131nma, al\u00fcminyum end\u00fcstrisinde yanma olaylar\u0131n\u0131n meydana gelmesinin \u00f6nemli nedenlerinden biridir.<\/p>\n
(2) Erimi\u015f al\u00fcminyumun \u0131s\u0131 tutma s\u00fcresi \u00e7ok uzundur ve hava ile temas s\u00fcresi de \u00e7ok uzundur.<\/p>\n
(3) Kar\u0131\u015ft\u0131rma f\u0131r\u0131n\u0131na eklenen kat\u0131 so\u011fuk malzeme temiz de\u011fildir; ya\u011f, nem ve kum vb. i\u00e7erir; bu da erimi\u015f al\u00fcminyumun oksidasyonunu ve yanmas\u0131n\u0131 h\u0131zland\u0131r\u0131r.<\/p>\n
(4) Kar\u0131\u015ft\u0131rma f\u0131r\u0131n\u0131n\u0131n \u0131s\u0131 yal\u0131t\u0131m\u0131 i\u00e7in kullan\u0131lan enerji t\u00fcr\u00fc, erimi\u015f al\u00fcminyumun yanma kayb\u0131n\u0131 etkiler.<\/p>\n
(5) F\u0131r\u0131nda erimi\u015f al\u00fcminyumun kar\u0131\u015ft\u0131r\u0131lma y\u00f6ntemi, erimi\u015f al\u00fcminyumun yanma kayb\u0131n\u0131 etkiler. Manuel kar\u0131\u015ft\u0131rma, sadece kar\u0131\u015ft\u0131rma homojenli\u011finin d\u00fc\u015f\u00fck olmas\u0131 ve kar\u0131\u015ft\u0131rma s\u00fcresinin uzun olmas\u0131yla kalmaz, ayn\u0131 zamanda erimi\u015f al\u00fcminyum y\u00fczeyinde b\u00fcy\u00fck bir bozulmaya ve erimi\u015f al\u00fcminyumun ciddi \u015fekilde oksitlenmesine ve yanmas\u0131na neden olur; ayr\u0131ca operat\u00f6rlerin \u00e7al\u0131\u015fma ortam\u0131 zorlu oldu\u011fundan g\u00fcvenlik riskleri de ortaya \u00e7\u0131kar. Mekanik kar\u0131\u015ft\u0131rmada kar\u0131\u015ft\u0131rma s\u00fcresi b\u00fcy\u00fck \u00f6l\u00e7\u00fcde k\u0131salmas\u0131na ve erimi\u015f al\u00fcminyum ile hava aras\u0131ndaki temas s\u00fcresi azalmas\u0131na ra\u011fmen, mekanik ekipman\u0131n erimi\u015f al\u00fcminyuma verdi\u011fi bozulma, manuel kar\u0131\u015ft\u0131rmaya g\u00f6re \u00e7ok daha fazlad\u0131r. Operat\u00f6rlerin i\u015f y\u00fck\u00fc ve \u00e7al\u0131\u015fma ortam\u0131ndaki bariz iyile\u015fmenin yan\u0131 s\u0131ra, erimi\u015f al\u00fcminyumun yanma kayb\u0131n\u0131n azalt\u0131lmas\u0131 konusunda herhangi bir geli\u015fme g\u00f6r\u00fclmemektedir.<\/p>\n
(6) C\u00fcrufla ay\u0131rma yoluyla d\u0131\u015far\u0131 \u00e7\u0131kar\u0131lan erimi\u015f al\u00fcminyum da metalik al\u00fcminyum kayb\u0131n\u0131n \u00f6nemli bir bile\u015fenidir.<\/p>\n