{"id":10581,"date":"2021-10-13T09:04:08","date_gmt":"2021-10-13T09:04:08","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10581"},"modified":"2021-10-13T09:04:08","modified_gmt":"2021-10-13T09:04:08","slug":"cover-flux","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/tr\/cover-flux\/","title":{"rendered":"Kapak Ak\u0131s\u0131"},"content":{"rendered":"<p>Kaplama ak\u0131s\u0131, fiziksel bir bariyer olu\u015fturarak erimi\u015f al\u00fcminyumun oksitlenmesini \u00f6nler. Kaplama ak\u0131s\u0131, hidrojen i\u00e7eren yak\u0131t\u0131n yanmas\u0131yla olu\u015fan al\u00fcminyum ve H\u2082O aras\u0131ndaki reaksiyondan kaynaklanan hidrojen emilim h\u0131z\u0131n\u0131 azalt\u0131r. Kaplama ak\u0131s\u0131, MgCl\u2082-KCl bazl\u0131d\u0131r ve 424 \u00b0C\u2019de d\u00fc\u015f\u00fck erime noktal\u0131 bir \u00f6tektik olu\u015fturur. Bu kaplama ak\u0131\u015fkanlar\u0131 y\u00fcksek ak\u0131\u015fkanl\u0131\u011fa sahiptir ve eriyik y\u00fczeyinde ince bir tabaka olu\u015fturur. MgCl\u2082 pahal\u0131 oldu\u011fu i\u00e7in, esas olarak Na ve Ca i\u00e7eri\u011fi son derece d\u00fc\u015f\u00fck ve magnezyum i\u00e7eri\u011fi %2'yi a\u015fan al\u00fcminyum ala\u015f\u0131mlar\u0131n\u0131n i\u015flenmesinde kullan\u0131l\u0131r.<\/p>\n<p>Tuzlu ak\u0131\u015fkanlar, erimi\u015f al\u00fcminyumun i\u015flenmesinde \u00f6nemli bir rol oynar. Bu ak\u0131\u015fkanlar, metalin oksitlenmesini pasif olarak \u00f6nleyebilir ve bazen de kal\u0131nt\u0131lar\u0131 ve alkali metalleri aktif olarak giderebilir. Tuzlu ak\u0131\u015fkanlar ayr\u0131ca, c\u00fcruftan metal geri kazan\u0131m\u0131n\u0131 art\u0131rmak ve geri kazan\u0131lm\u0131\u015f at\u0131klar\u0131n eritme s\u00fcrecinde de kullan\u0131labilir.<\/p>\n<p><a href=\"http:\/\/www.alalloycasting.com\/tr\/aluminum-casting-flux\/\">Al\u00fcminyum D\u00f6k\u00fcm Tozu<\/a> gaz giderme, Li, Na, Ca ve Mg'nin uzakla\u015ft\u0131r\u0131lmas\u0131, kal\u0131nt\u0131lar\u0131n giderilmesi, temizleme ve ala\u015f\u0131mlama gibi \u00e7e\u015fitli i\u015flevleri yerine getirebilir. Ayr\u0131ca, ak\u0131, oksidasyonu en aza indirgemek ve metal\/oksit ayr\u0131\u015fmas\u0131n\u0131 kolayla\u015ft\u0131rmak i\u00e7in de kullan\u0131labilir; b\u00f6ylece geri kazan\u0131m oranlar\u0131 art\u0131r\u0131l\u0131r. Yayg\u0131n olarak kullan\u0131lan baz\u0131 ak\u0131\u015fkanlar, KCl ve NaCl kar\u0131\u015f\u0131m\u0131na dayan\u0131r; ak\u0131\u015fkan\u0131n ak\u0131\u015fkanl\u0131\u011f\u0131n\u0131 art\u0131rmak i\u00e7in d\u00fc\u015f\u00fck s\u0131cakl\u0131kta (665 \u00b0C) bir \u00f6tektik olu\u015fur.<\/p>\n<p>Oksit, ak\u0131\u015fkan\u0131n i\u015flenmesiyle erimi\u015f al\u00fcminyumdan uzakla\u015ft\u0131r\u0131labilir. Ak\u0131, oksitleri ba\u011flayabilen flor\u00fcr bazl\u0131d\u0131r. Metal oksitler aras\u0131ndaki y\u00fczey gerilimi, oksitler ile flor\u00fcrler aras\u0131ndaki y\u00fczey geriliminden \u00f6nemli \u00f6l\u00e7\u00fcde daha y\u00fcksektir. Ard\u0131ndan, flor\u00fcr ve oksit kar\u0131\u015f\u0131k bir faz olu\u015fturur; \u00e7\u00fcnk\u00fc d\u00fc\u015f\u00fck enerjili haldeki flor\u00fcr, oksitlere yap\u0131\u015farak onlar\u0131 kaplar ve al\u00fcminyum bu kar\u0131\u015f\u0131k fazlardan ayr\u0131l\u0131r.<\/p>\n<p>Ak\u0131, oksit ve flor\u00fcr\u00fc kaplar ve ard\u0131ndan kar\u0131\u015f\u0131k bir oksit faz\u0131 olu\u015fturur. Bu durum, tek tek oksit par\u00e7ac\u0131klar\u0131na ayr\u0131\u015fmaya yol a\u00e7ar. Bu par\u00e7alanm\u0131\u015f oksit kar\u0131\u015f\u0131k fazlar, yo\u011funluklar\u0131 erimi\u015f al\u00fcminyumunkinden \u00e7ok daha d\u00fc\u015f\u00fck oldu\u011fu i\u00e7in y\u00fczerler. Sonu\u00e7 olarak, metal i\u00e7eri\u011fi d\u00fc\u015f\u00fck bir c\u00fcruf olu\u015fur.<\/p>","protected":false},"excerpt":{"rendered":"<p>The cover flux prevents oxidation of the molten aluminum by providing a physical barrier. Cover flux will reduce the rate of hydrogen absorption from the&hellip;<\/p>","protected":false},"author":1,"featured_media":10582,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10581","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cover Flux for Molten Aluminum -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"The cover flux prevents oxidation of the molten aluminum by providing a physical barrier. 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