{"id":7121,"date":"2021-10-13T03:37:06","date_gmt":"2021-10-13T03:37:06","guid":{"rendered":"https:\/\/www.aluminiumceramicfiber.com\/?p=7121"},"modified":"2021-10-13T03:37:07","modified_gmt":"2021-10-13T03:37:07","slug":"foundries-refining-fluxes","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/ar\/foundries-refining-fluxes\/","title":{"rendered":"Foundries Refining Fluxes"},"content":{"rendered":"<p>Foundries Refining Fluxes are dust-free during use and emit low smoke during use. Compared with powdered flux, granular flux can be used in a reduced amount.<\/p>\n<p>Foundries Refining Fluxes remove non-metallic inclusions, the dry ash-like slag produced is easily separated from the liquid metal. Therefore, slag skimming is promoted, and metal loss due to aluminum staying in the scum is reduced. Molten aluminum refining is specially developed for environmental protection.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7122\" src=\"https:\/\/aluminiumceramicfiber.com\/wp-content\/uploads\/2021\/10\/Foundries-Refining-Fluxes.jpg\" alt=\"Foundries Refining Fluxes\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2021\/10\/Foundries-Refining-Fluxes.jpg 500w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2021\/10\/Foundries-Refining-Fluxes-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>There is a thin layer of alumina on the surface of aluminum chips. The layer grows faster when the waste is exposed to higher temperatures and melts. In addition, alumina will eventually float to the surface and form a scum phase. The surface tension of the oxide scale will cause aluminum to be trapped in the scum phase. This is very undesirable because the metal content of scum can reach as high as 80%.<\/p>\n<p>Therefore, it is necessary to use the furnace <a href=\"https:\/\/www.aluminiumceramicfiber.com\/ar\/non-toxic-refining-agent\/\">\u0639\u0627\u0645\u0644 \u062a\u0643\u0631\u064a\u0631<\/a> to recover the aluminum contained in the slag by destroying the oxide layer and releasing the entrained metal. This is achieved by changing the shape of aluminum droplets, which leads to oxide scale cracking. These types of fluxes are based on the standard composition of 50wt% NaCl and 50wt% KCl, and the eutectic temperature is about 660 \u00b0 C. The addition of fluoride salt helps to promote coalescence and produce flux with much less metal content. In particular, Na3AlF6 is very helpful to reduce surface tension.<\/p>\n<p>In addition to recovering metal from the scum phase, the main tasks of the refining agent include: protecting the melt from further oxidation by covering, dissolving, or suspending dirt, oxides, and other non-metallic particles. Salt compound droplets act as bubbles and suspend inclusions to the surface by flotation. Since the speed of flux droplets rising to the surface is much smaller than that of bubbles, a certain stabilization time is required. In addition, due to the density gradient, about half an hour of settling time will settle the inclusions to the rear of the furnace. Larger and denser inclusions settle faster than smaller and less dense inclusions.<\/p>","protected":false},"excerpt":{"rendered":"<p>Foundries Refining Fluxes are dust-free during use and emit low smoke during use. Compared with powdered flux, granular flux can be used in a reduced amount. Foundries Refining Fluxes remove non-metallic inclusions, the dry ash-like slag produced is easily separated from the liquid metal. Therefore, slag skimming is promoted, and metal loss due to aluminum [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7122,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7121","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Foundries Refining Fluxes -sales@aluminiumceramicfiber.com<\/title>\n<meta name=\"description\" content=\"Foundries Refining Fluxes are dust-free during use and emit low smoke. 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