{"id":8385,"date":"2021-03-02T09:19:32","date_gmt":"2021-03-02T09:19:32","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=8385"},"modified":"2021-03-02T09:19:32","modified_gmt":"2021-03-02T09:19:32","slug":"rotary-degassing-equipment","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/id\/rotary-degassing-equipment\/","title":{"rendered":"Peralatan Penghilang Gas Rotari"},"content":{"rendered":"<p><strong>Peralatan Penghilang Gas Rotari<\/strong> dilakukan antara tungku pengecoran (atau tungku penampung logam) dan mesin pengecoran. Saluran logam semacam itu dapat memiliki kemiringan yang sedikit dari tungku pengecoran menuju mesin pengecoran, dan cocok untuk aliran logam cair dari tungku pengecoran ke mesin pengecoran.<\/p>\n<p><strong>Pengotor dalam aluminium cair<\/strong><br \/>\nSelain bahan baku logam, terdapat pula pengotor dalam lelehan aluminium; selama proses peleburan, lelehan aluminium tersebut juga akan menyerap pengotor dari lapisan dalam tungku, gas tungku, fluks, bahan baku yang dimasukkan, dan peralatan operasional.<\/p>\n<p>Inklusi non-logam dalam lelehan aluminium terutama merujuk pada alumina. Sifatnya padat dan ulet. Baik dalam bentuk padat maupun cair, alumina mudah membentuk lapisan pelindung padat yang melekat erat pada permukaan.<br \/>\nKetika lapisan aluminium oksida terkena benturan dalam keadaan cair, lapisan tersebut mudah hancur menjadi partikel-partikel halus, yang menyebabkan kerusakan paling parah. Meskipun kepadatan alumina dapat mencapai 3\u20134 g\/cm\u00b3, pada suhu tinggi nilainya hanya 2,3\u20132,4 g\/cm\u00b3, yang hampir sama dengan kepadatan larutan aluminium.<br \/>\nOleh karena itu, partikel-partikel tersebut sebenarnya berada dalam keadaan tersuspensi di dalam cairan aluminium yang meleleh.<\/p>\n<p><strong>Setelah terak yang telah teroksidasi mengeras, terak tersebut dicampurkan ke dalam strip cor.<\/strong><br \/>\nKarena unsur tersebut tidak dapat larut dalam paduan aluminium, dan juga tidak dapat membentuk senyawa antara dengan unsur-unsur lain.<br \/>\nZat tersebut hanya dapat tersebar di batas-batas butir kristal dalam keadaan padat, sehingga merusak gaya ikatan antar butir kristal.<br \/>\nAkibat adanya terak oksida ini, gaya ikatan antarkristal menjadi terputus.<br \/>\nHal ini menimbulkan banyak bahaya, menurunkan kinerja proses selama pemrosesan bertekanan, dan menyebabkan delaminasi logam selama pemrosesan, yang pada akhirnya mengakibatkan retakan.<br \/>\nKekuatan produk aluminium tidak stabil, dan tingkat perpanjangan (elongasi)nya berkurang secara signifikan. Terutama saat terkena beban benturan atau getaran, akan terjadi patahan duktil, yang pada gilirannya memengaruhi masa pakai bahan tersebut.<\/p>\n<p><img class=\"alignnone size-full wp-image-8386\" src=\"http:\/\/www.adtechamm.com\/wp-content\/uploads\/2021\/03\/Rotary-Degassing-Equipment.jpg\" alt=\"Peralatan Penghilang Gas Rotari\" width=\"600\" height=\"800\" srcset=\"https:\/\/www.adtechamm.com\/wp-content\/uploads\/2021\/03\/Rotary-Degassing-Equipment.jpg 600w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2021\/03\/Rotary-Degassing-Equipment-225x300.jpg 225w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>Saat ini, sebagian besar proses pengecoran paduan aluminium telah diterapkan pada Peralatan Penghilang Gas Rotari.<\/strong> Pengalaman telah membuktikan bahwa perbedaan suhu cairan di dalam <a href=\"http:\/\/www.adtechamm.com\/id\/online-degassing-device\/\">perangkat penghilang gas daring<\/a> memiliki efek penghilangan gas yang berbeda-beda.<br \/>\nOleh karena itu, perlu diperhatikan persyaratan suhu cairan agar perangkat penghilang gas secara online dapat berfungsi dengan baik.<br \/>\nSelain itu, kebocoran gas dari cairan di dalam kristalisator juga perlu diperhatikan.<br \/>\nKarena suhu pengecoran yang rendah, gas di dalam cetakan terlambat keluar dari permukaan cairan, sehingga menyebabkan porositas dan struktur yang longgar, serta dapat menimbulkan cacat kualitas seperti terak dan isolasi dingin.<br \/>\nSuhu pengecoran yang tinggi tidak boleh melebihi suhu leleh.<br \/>\nSuhu pengecoran yang terlalu tinggi akan menyebabkan kebocoran aluminium pada awal proses pengecoran.<br \/>\nKarena panjang alat pemindahan berbeda-beda dan penurunan suhu cairan juga bervariasi, terdapat titik-titik pemanasan pada pipa, sehingga suhu cairan mengalami fluktuasi yang cukup besar selama proses pemindahan.<br \/>\nOleh karena itu, suhu pengecoran harus mengacu pada suhu cairan yang disuntikkan ke dalam cetakan.<br \/>\nSecara umum, suhu pengecoran 50\u00b0C hingga 70\u00b0C lebih tinggi daripada suhu kristalisasi sebenarnya dari paduan tersebut.<br \/>\nZona transisi paduan aluminium seri 1xxx dan 3xxx dalam mesin pengecoran relatif sempit, sehingga suhu pengecoran harus lebih tinggi. Zona transisi paduan seri 2xxx dan 7xxx lebih luas. Suhu pengecoran harus lebih rendah dari suhu tersebut.<\/p>","protected":false},"excerpt":{"rendered":"<p>Rotary Degassing Equipment is carried out between the casting (or metal holding) furnace and the casting machine. Such a metallurgical launder can have a slight inclination from the casting furnace to the casting machine, and is suitable for the flow of molten metal from the&#8230;<\/p>","protected":false},"author":1,"featured_media":8386,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[45391],"tags":[1303,1301,1306,1331],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Rotary Degassing Equipment -Molten Aluminium | Adtech China<\/title>\n<meta name=\"description\" content=\"Rotary Degassing Equipment is carried out between the casting (or metal holding) furnace and the casting machine. 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