{"id":8671,"date":"2021-03-24T07:56:11","date_gmt":"2021-03-24T07:56:11","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=8671"},"modified":"2021-03-24T07:56:11","modified_gmt":"2021-03-24T07:56:11","slug":"grain-refining-of-aluminium","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/id\/grain-refining-of-aluminium\/","title":{"rendered":"Penghalusan Butiran Aluminium"},"content":{"rendered":"

Proses Penghalusan Butir Aluminium berfungsi untuk menghilangkan inklusi non-logam, hidrogen, natrium, kalsium, dan litium dari aluminium cair dan paduan aluminium.<\/strong>
\nGrain Refining diproduksi dalam dua bentuk, yaitu partikel halus dan butiran.
\nPemurnian Biji-bijian<\/a> bereaksi dengan cepat dan secara efektif menghilangkan natrium, litium, dan kalsium dari aluminium cair, paduan aluminium, serta lapisan tahan api tungku.
\nPada paduan aluminium berkadar Mg tinggi, kandungan natrium di bawah 1 ppm dapat dicapai pada hasil cor. Proses penghalusan butir menghilangkan berbagai inklusi non-logam, seperti oksida, karbida, dan borida, serta memperkuat struktur paduan selama proses penghilangan gas.<\/p>\n

Proses pemurnian butiran biasanya digunakan untuk menghilangkan alkali (natrium, litium, kalsium) dan inklusi non-logam dari semua paduan di pabrik peleburan primer.<\/p>\n

Untuk menghilangkan inklusi non-logam, hidrogen, dan logam alkali dalam aluminium cair di tungku peleburan atau tungku penampung, ditambahkan 250 gram hingga 1,0 kg bahan penghalus butiran per metrik ton bahan baku logam.<\/p>\n

Keuntungan dari Proses Penghalusan Butiran pada Aluminium<\/strong>
\na) Meningkatkan kecepatan ekstrusi profil dan masa pakai cetakan
\nb) Mengurangi jumlah retakan pada proses pengecoran kontinu
\nc) Menghilangkan retakan tepi saat penggulungan paduan aluminium dengan kandungan Mg tinggi
\nd) Tidak mengandung fluorida. Tidak ada emisi fluorinasi.
\ne) senyawa yang tidak berbahaya
\nf) Titik leleh rendah, dispersi cepat (<766\u00b0F, 480\u00b0C)
\ng) Tidak sehygroskopis magnesium
\nh) Mengganti klorin dalam fluks di dalam tungku
\ni) Mengurangi penggunaan klorin dalam sistem pemurnian online
\nj) Dosis rendah, umumnya 0,5 kg per ton aluminium
\nk) Pastikan tungku, scrubber, degasser online, dan nosel pengecoran bebas dari endapan lumpur dan buih.<\/p>\n

\"Penghalusan<\/p>\n

Selama proses peleburan,<\/strong> Alat-alat dan faktor-faktor lain memengaruhi kualitas lelehan paduan aluminium. Lelehan tersebut harus dikeringkan terlebih dahulu sebelum digunakan. Lelehan tersebut tidak boleh diproses dalam keadaan dingin dan harus dilapisi dengan lapisan pelindung untuk mencegah logam menyerap hidrogen lebih lanjut serta meningkatkan kandungan besi.
\nKadar air pada bahan pemurnian harus dijaga agar tetap di bawah 0,3%, dan kemurnian gas emosional harus di atas 99,99%.<\/p>\n

Selama proses pemurnian,<\/strong> Letakkan ujung pipa saluran keluar sedekat mungkin dengan dasar kolam logam cair, lalu gerakkan pipa saluran keluar tersebut maju-mundur agar bahan pemurnian bersentuhan sepenuhnya dengan aluminium cair guna mencapai tujuan pemurnian.
\nSelama proses pemurnian, penulis dapat dengan leluasa mengontrol aliran gas pembawa dan zat pemurnian melalui barometer serta kecepatan pengumpan bubuk.
\nHal ini dilakukan untuk mengendalikan tingkat perputaran aluminium cair, serta meminimalkan polusi sekunder sebanyak mungkin. Waktu pemurnian diatur antara 10\u201315 menit, dan jika diperlukan, dilakukan dua kali proses pemurnian.<\/p>","protected":false},"excerpt":{"rendered":"

Grain Refining of Aluminium removes non-metallic inclusions, hydrogen, sodium, calcium and lithium from liquid aluminum and aluminum alloys. Grain Refining is produced in two forms, fine particles and granular. Grain Refining reacts quickly and effectively removes sodium, lithium and calcium from molten aluminum and aluminum…<\/p>","protected":false},"author":1,"featured_media":8672,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"yoast_head":"\nGrain Refining of Aluminium | Adtech China - sales@adtechamm.com<\/title>\n<meta name=\"description\" content=\"Grain Refining of Aluminium removes non-metallic inclusions, hydrogen, sodium, calcium and lithium from liquid aluminum and aluminum alloys.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.adtechamm.com\/id\/grain-refining-of-aluminium\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Grain Refining of Aluminium | Adtech China - sales@adtechamm.com\" \/>\n<meta property=\"og:description\" content=\"Grain Refining of Aluminium removes non-metallic inclusions, hydrogen, sodium, calcium and lithium from liquid aluminum and aluminum alloys.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.adtechamm.com\/id\/grain-refining-of-aluminium\/\" \/>\n<meta property=\"og:site_name\" content=\"Adtech China\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/avril.allen.3994\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/profile.php?id=100058838456679\" \/>\n<meta property=\"article:published_time\" content=\"2021-03-24T07:56:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.adtechamm.com\/wp-content\/uploads\/2021\/03\/Grain-Refining-of-Aluminium.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"683\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"AdTech\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@AdTech_China\" \/>\n<meta name=\"twitter:site\" content=\"@AdTech_China\" \/>\n<meta name=\"twitter:label1\" content=\"Ditulis oleh\" \/>\n\t<meta name=\"twitter:data1\" content=\"AdTech\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimasi waktu membaca\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.adtechamm.com\/grain-refining-of-aluminium\/\",\"url\":\"https:\/\/www.adtechamm.com\/grain-refining-of-aluminium\/\",\"name\":\"Grain Refining of Aluminium | Adtech China - 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