{"id":8862,"date":"2021-04-20T02:04:20","date_gmt":"2021-04-20T02:04:20","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=8862"},"modified":"2021-04-20T02:04:20","modified_gmt":"2021-04-20T02:04:20","slug":"foundry-degassing-process","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/id\/foundry-degassing-process\/","title":{"rendered":"Proses Penghilangan Gas pada Pengecoran Logam"},"content":{"rendered":"<p><strong>Proses Penghilangan Gas pada Pengecoran Logam<\/strong>: tangki penyimpanan gas inert \u2192 perangkat penghilang gas secara online \u2192 panel kontrol gas \u2192 nosel rotor grafit \u2192 pemrosesan logam cair paduan aluminium \u2192 proses pemurnian dan penghilangan gas.<br \/>Prinsip kerja degassing rotari adalah untuk memperluas luas permukaan gas yang dimasukkan agar dapat bersentuhan dengan logam. Semakin luas luas permukaannya, semakin tinggi laju perpindahan dari logam ke gas inert.<br \/>Pada suatu volume gas tertentu, semakin kecil ukuran gelembung, semakin besar luas permukaannya. Gelembung yang lebih kecil menimbulkan gangguan yang lebih sedikit pada permukaan cairan, sehingga mengurangi penyerapan hidrogen berlebih dari atmosfer yang lembap.<\/p>\n<p><strong>Paduan aluminium merupakan bahan struktural logam non-besi yang paling banyak digunakan di industri.<\/strong><br \/>Bahan ini banyak digunakan di bidang penerbangan, dirgantara, otomotif, manufaktur mesin, pembuatan kapal, industri kimia, dan industri lainnya. Seiring dengan pesatnya perkembangan ekonomi industri, permintaan akan paduan aluminium pun semakin meningkat.<br \/>Proses penghilangan gas diperlukan untuk menghilangkan hidrogen terlarut dan inklusi non-logam dalam logam cair agar hasil pengecoran mencapai kualitas terbaik.<br \/>Hidrogen yang terlarut dalam bahan cair tersebut berdifusi ke dalam gelembung fluks yang naik dan dibawa ke permukaan bahan cair tersebut.<\/p>\n<p><img class=\"alignnone size-full wp-image-8863\" src=\"http:\/\/www.adtechamm.com\/wp-content\/uploads\/2021\/04\/Foundry-Degassing-Process.jpg\" alt=\"Proses Penghilangan Gas pada Pengecoran Logam\" width=\"900\" height=\"600\" srcset=\"https:\/\/www.adtechamm.com\/wp-content\/uploads\/2021\/04\/Foundry-Degassing-Process.jpg 900w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2021\/04\/Foundry-Degassing-Process-300x200.jpg 300w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2021\/04\/Foundry-Degassing-Process-768x512.jpg 768w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2021\/04\/Foundry-Degassing-Process-700x467.jpg 700w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/p>\n<p><strong>Prinsip Proses Penghilangan Gas pada Pengecoran<\/strong><br \/>Sebuah perangkat penghilang gas dipasang di antara tungku penahan dan mesin pengecoran.<br \/>Di dalam tangki perlakuan degassing, nitrogen yang ditiupkan ke dalam cairan paduan aluminium dihancurkan oleh rotor grafit yang berputar sehingga membentuk sejumlah besar gelembung difusi, sehingga cairan paduan aluminium dan nitrogen dapat bersentuhan secara menyeluruh di dalam tangki perlakuan tersebut.<br \/>Berdasarkan prinsip perbedaan tekanan dan adsorpsi permukaan, gelembung-gelembung dalam cairan logam menyerap hidrogen yang terdapat di dalamnya serta mengadsorpsi terak yang teroksidasi (gelembung besar mengandalkan tabrakan, sedangkan yang kecil mengandalkan intersepsi radial). Lapisan busa terbentuk di permukaan cairan logam. Cairan logam paduan aluminium mengalir dari saluran keluar <a href=\"http:\/\/www.adtechamm.com\/id\/degassing-of-aluminium\/\">Alat penghilang gas pada aluminium<\/a> (yang terletak di bagian bawah endapan) ke mesin pengecoran.<br \/>Cairan paduan aluminium secara terus-menerus masuk ke dalam perangkat penghilang gas, dan nitrogen terus-menerus dihembuskan ke dalamnya. Melalui proses penghilangan gas tersebut, tujuan pemurnian cairan paduan aluminium tercapai.<\/p>\n<p><strong>Kotak pemrosesan pada perangkat penghilang gas terdiri dari dua ruang bagian dalam, yaitu ruang bersih dan ruang pemanasan serta penahanan.<\/strong><br \/>Bagian tengahnya dipisahkan oleh pemisah SiC.<br \/>Setelah proses penghilangan gas dan pengeluaran terak di ruang pembersihan, cairan paduan aluminium mengalir ke ruang pemeliharaan panas dari bagian bawah sekat. Selubung silikon karbon berbentuk huruf U dan tabung pelindung silikon karbida yang direndam dalam cairan paduan aluminium digunakan untuk memanaskan ruang pemeliharaan panas.<br \/>Cangkang kotak terbuat dari pelat baja setebal 10 mm, sedangkan lapisan dalamnya terbuat dari bahan tahan api.<br \/>Pemanas ini praktis untuk langsung mengalirkan dan mengangkut aliran cairan paduan aluminium yang sedang diproses yang terendam.<br \/>Sesuai saran dari perusahaan kami, terdapat pintu pembuangan terak di bagian bawah kedua dinding samping kotak tersebut.<br \/>Proses pembuangan terak di dalam rongga dilakukan tanpa mengaktifkan penutup, sehingga memperpanjang masa pakai rongga bagian dalam kotak, sekaligus meningkatkan kinerja isolasi termal kotak dan mengurangi kehilangan panas.<br \/>Proses reduksi dan kompensasi termal pada tungku pemanas sepenuhnya memenuhi persyaratan suhu dalam proses produksi; kotak tersebut memiliki kedap udara yang baik, sehingga dapat mencegah masuknya udara ke dalam kotak serta mencegah terjadinya polusi sekunder pada cairan paduan aluminium.<br \/>Dilengkapi dengan perangkat pembalik hidraulik, kotak ini dapat dikosongkan sepenuhnya setelah pekerjaan pengecoran selesai atau setelah penggantian paduan, sehingga isinya dapat dibuang seluruhnya. Pemanas tidak perlu dihidupkan dalam waktu lama untuk mempertahankan panas, sehingga konsumsi daya dapat dikurangi secara relatif.<\/p>","protected":false},"excerpt":{"rendered":"<p>Foundry Degassing Process: inert gas storage tank \u2192 online degassing device gas control cabinet \u2192 graphite rotor nozzle \u2192 processing aluminum alloy melt \u2192 purification and degassing treatment.The working principle of rotary degassing is to increase the surface area of \u200b\u200bthe inserted gas to contact&#8230;<\/p>","protected":false},"author":1,"featured_media":8863,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[45391],"tags":[60070,60103,60123,60124,60122,60089,60084,60085,60078,60097,60101,60132,60105,60107,60112,60111,60109,60108,60110,60106,60071,60080,60081,60092,60082,60083,60094,60104,60095,60128,60129,60086,60125,60115,60116,60120,60121,60088,60077,60118,60119,60100,60114,60113,60127,60126,60098,60076,60090,60130,60074,60072,60075,60117,60099,60096,60102,60073,60091,60093,60131,60087,60079],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Foundry Degassing Process for Molten Aluminum | Adtech China<\/title>\n<meta name=\"description\" content=\"Foundry Degassing Process: inert gas storage tank \u2192 online degassing device gas control cabinet \u2192 graphite rotor nozzle \u2192 processing aluminum alloy melt...\" 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