Al\u00fcminyum d\u00f6k\u00fcm kayb\u0131<\/a> Bu terim, eritme i\u015flemi s\u0131ras\u0131nda f\u0131r\u0131n duvar\u0131 ve ar\u0131tma maddesi ile etkile\u015fim sonucu meydana gelen oksidasyon, buharla\u015fma ve geri kazan\u0131lamayan metal kayb\u0131ndan kaynaklanan metal ve al\u00fcminyum ala\u015f\u0131m\u0131na ili\u015fkin genel bir terimdir.<\/p>\nD\u00f6k\u00fcm kayb\u0131n\u0131n ba\u015fl\u0131ca d\u0131\u015f belirtisi iki k\u0131sma ayr\u0131labilir: Bunlardan biri saf al\u00fcminyum k\u00fcl\u00fc \u015feklindeyken, di\u011feri ise y\u0131\u011f\u0131n halindeki al\u00fcminyum, kusurlu al\u00fcminyum ve al\u00fcminyum c\u00fcrufu \u015feklindedir.<\/p>\n
Al\u00fcminyumun oksidatif yanma ilkesi, a\u015fa\u011f\u0131daki kimyasal denklemler arac\u0131l\u0131\u011f\u0131yla daha iyi anla\u015f\u0131labilir.<\/p>\n
Erime s\u0131cakl\u0131\u011f\u0131 aral\u0131\u011f\u0131nda al\u00fcminyum, oksijenle y\u00fcksek bir afiniteye sahiptir ve kolayca oksitlenir. Oksitlenme sonras\u0131nda y\u00fczeyde Al\u2082O\u2083 tabakas\u0131 olu\u015fur; s\u0131cakl\u0131k 500 \u00b0C\u2019nin \u00fczerine \u00e7\u0131kt\u0131\u011f\u0131nda ise bu tabaka, metastabil r-Al\u2082O\u2083 halini al\u0131r.
\nMetastabil oksit tabakas\u0131n\u0131n kararl\u0131 oksit tabakas\u0131na d\u00f6n\u00fc\u015f\u00fcm\u00fc s\u0131ras\u0131nda hacimsel b\u00fcz\u00fclme meydana gelir ve bunun ard\u0131ndan daha fazla oksidasyon ve \u00e7atlama olu\u015fur.
\nAl\u00fcminyum eriyik s\u0131cakl\u0131\u011f\u0131 artt\u0131k\u00e7a ve s\u00fcre uzad\u0131k\u00e7a, oksit tabakas\u0131 daha h\u0131zl\u0131 b\u00fcy\u00fcr; oksidasyon miktar\u0131 ve kal\u0131nl\u0131\u011f\u0131 da \u00f6nemli \u00f6l\u00e7\u00fcde artar.<\/p>\n
D\u00f6k\u00fcm kayb\u0131n\u0131 etkileyen fakt\u00f6rler \u015funlard\u0131r:
\n1) S\u0131v\u0131 al\u00fcminyum s\u0131cakl\u0131\u011f\u0131.
\n2) S\u0131v\u0131 al\u00fcminyum ile oksijenin temas g\u00fcc\u00fc.
\n3) Al\u00fcminyum c\u00fcrufundaki al\u00fcminyum i\u00e7eri\u011fi.
\n4) C\u00fcruf taraf\u0131ndan d\u0131\u015far\u0131 at\u0131lan s\u0131v\u0131 al\u00fcminyum.
\n5) Kusurlu al\u00fcminyum ve d\u00f6kme al\u00fcminyumun fiyat\u0131 ne kadard\u0131r?.
\n6) Di\u011fer zararlar<\/p>\n
Al\u00fcminyum D\u00f6k\u00fcmhanesinde D\u00f6k\u00fcm Kayb\u0131 Nas\u0131l Azalt\u0131l\u0131r?<\/p>\n
Al\u00fcminyum s\u0131v\u0131s\u0131 ile hava aras\u0131ndaki temas kuvvetini azalt\u0131n. S\u0131v\u0131 al\u00fcminyum ile oksijen aras\u0131ndaki temas kuvveti ne kadar b\u00fcy\u00fckse, oksidasyon kayb\u0131 o kadar ciddi olur ve d\u00f6k\u00fcm kayb\u0131 da o kadar artar.<\/p>","protected":false},"excerpt":{"rendered":"
Aluminum Foundry Casting converts liquid aluminum into finished products and semi-finished products of aluminum ingots, bars or other shapes through processes such as batching, stirring,…<\/p>","protected":false},"author":1,"featured_media":8140,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8139","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\n
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