{"id":794,"date":"2020-05-15T09:43:54","date_gmt":"2020-05-15T09:43:54","guid":{"rendered":"https:\/\/aluminiumceramicfiber.com\/?p=794"},"modified":"2020-09-15T06:18:47","modified_gmt":"2020-09-15T06:18:47","slug":"aluminum-degassing-process","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/id\/aluminum-degassing-process\/","title":{"rendered":"Proses Penghilangan Gas pada Aluminium"},"content":{"rendered":"<p>Seiring perkembangan industri otomotif, penggunaan coran paduan aluminium semakin meluas, dan persyaratan terhadap coran tersebut pun semakin tinggi. Selain memastikan komposisi kimia, sifat mekanik, dan ketepatan dimensi. Pengecoran paduan aluminium tidak boleh memiliki cacat pengecoran, seperti pori-pori dan lubang terak. Perawatan pemurnian aluminium cair dapat meningkatkan kualitas keseluruhan paduan aluminium. Efek pemurnian memiliki pengaruh penting terhadap pembentukan lubang dan inklusi, serta secara langsung memengaruhi sifat fisik dan mekanis pengecoran paduan aluminium. Oleh karena itu, kita harus memperhatikan gas dan inklusi dalam cairan aluminium. Proses Penghilangan Gas pada Aluminium dapat menghilangkan gas dan inklusi dalam cairan aluminium.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2835\" src=\"https:\/\/aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/05\/Aluminum-Degassing-Process.jpg\" alt=\"Proses Penghilangan Gas pada Aluminium\" width=\"400\" height=\"333\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/05\/Aluminum-Degassing-Process.jpg 400w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/05\/Aluminum-Degassing-Process-300x250.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/p>\n<p>Gas yang terkandung dalam aluminium cair sebagian besar adalah hidrogen. Hidrogen hampir tidak larut dalam aluminium padat, tetapi sangat larut dalam aluminium cair. Karena perbedaan kelarutan tersebut, hidrogen cenderung keluar dari cairan aluminium. Ketika tekanan hidrogen lebih besar daripada tegangan permukaan dan tekanan hidrostatik, gelembung terbentuk, yang pada gilirannya menyebabkan lubang kecil pada hasil coran. Terdapat interaksi yang kuat antara inklusi dalam paduan aluminium dan gas. Pengotor non-logam yang umum terdapat dalam aluminium cair adalah oksida, nitrida, karbida, borida, dan sebagainya. Selain itu, kandungan hidrogen dalam aluminium cair sangat dipengaruhi oleh inklusi tersebut. Pada kandungan hidrogen yang sama, semakin tinggi kandungan inklusi, semakin tinggi pula tingkat terjadinya lubang jarum. Sebaliknya, ketika kandungan pengotor dalam aluminium cair sangat rendah, kandungan hidrogennya juga sangat rendah. Oleh karena itu, menghilangkan pengotor dan menghilangkan gas secara bersamaan sama-sama penting.<\/p>\n<h2>Proses Penghilangan Gas pada Aluminium<\/h2>\n<p>Yang<strong> aluminium <a href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/portfolio\/degassing-unit\/\">unit penghilang gas<\/a> <\/strong>dipasang di antara tungku penampung dan mesin pengecoran. Nitrogen ditiupkan ke dalam paduan aluminium cair, dan gas tersebut dihancurkan oleh rotor grafit yang berputar di dalam tangki degassing. Kemudian terbentuklah sejumlah besar gelembung yang tersebar, sehingga paduan aluminium cair tersebut bersentuhan sepenuhnya dengan nitrogen di dalam tangki perlakuan. Berdasarkan perbedaan tekanan udara dan prinsip adsorpsi permukaan, gelembung-gelembung tersebut menyerap hidrogen dan terak teroksidasi. Selanjutnya, gelembung-gelembung tersebut naik ke permukaan logam cair untuk membentuk lapisan terak. Kemudian, paduan aluminium cair mengalir dari saluran keluar unit degassing ke mesin pengecoran. Paduan aluminium cair terus-menerus masuk ke dalam perangkat degassing, dan nitrogen terus-menerus dihembuskan ke dalamnya. Dengan proses pemurnian seperti ini,<strong>\u00a0mesin penghilang gas<\/strong>\u00a0dapat mencapai tujuan pemurnian paduan aluminium.<\/p>\n<p>Sebelum aluminium cair masuk ke dalam\u00a0<strong>peralatan penghilang gas<\/strong>, pekerja harus mematikan elemen pemanas. Ketika suhu pemanas mendekati suhu aluminium cair, masukkan gas inert ke dalam rotor, lalu tuangkan aluminium cair ke dalam kotak degassing.<\/p>","protected":false},"excerpt":{"rendered":"<p>With the development of the automotive industry, more and more aluminum alloy castings are used, and the requirements for casting are becoming higher and higher. In addition to ensuring the chemical composition, mechanical properties, and dimensional accuracy. Aluminum alloy castings are not allowed to have casting defects, such as pores and slag holes. Liquid aluminum [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2835,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37,85],"tags":[91,90],"class_list":["post-794","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-degassing-unit","category-seo","tag-aluminium-degassing-machine","tag-aluminum-degassing-process"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aluminum Degassing Process by Degassing Machine<\/title>\n<meta name=\"description\" content=\"The Aluminum Degassing Process is simple. 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