{"id":7409,"date":"2020-10-15T06:08:13","date_gmt":"2020-10-15T06:08:13","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=7409"},"modified":"2020-10-15T06:08:13","modified_gmt":"2020-10-15T06:08:13","slug":"aluminium-nitrogen-degassing-machine","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/id\/aluminium-nitrogen-degassing-machine\/","title":{"rendered":"Mesin Penghilang Gas Nitrogen pada Aluminium"},"content":{"rendered":"

Mesin Penghilang Gas Nitrogen pada Aluminium digunakan untuk mengendalikan kadar hidrogen, logam alkali, dan inklusi dalam lelehan aluminium sebelum proses pengecoran.<\/strong>
\nDalam dua dekade terakhir, Mesin Penghilang Gas Nitrogen pada Aluminium telah dikembangkan secara relatif menyeluruh.<\/p>\n

Kelarutan hidrogen dan parameter-parameter yang mempengaruhinya. Logam aluminium cair selalu berinteraksi dengan atmosfer, sehingga terbentuklah keseimbangan antara hidrogen gas di udara dan hidrogen dalam logam aluminium cair.
\nNamun, tekanan parsial (yakni kandungan) hidrogen di atmosfer hampir tidak relevan.
\nOleh karena itu, hidrogen berasal dari uap air di atmosfer, dan uap air tersebut dengan mudah bereaksi dengan aluminium cair sehingga menghasilkan dua produk reaksi yang bermasalah, yaitu alumina (inklusi) dan hidrogen (gas).
\nAluminium memiliki masalah dengan hidrogen, bukan karena hidrogen sangat larut dalam aluminium cair, melainkan karena hidrogen sangat tidak larut dalam aluminium padat, sehingga hidrogen akan terpisah dari larutan selama proses pemadatan.
\nKelarutan terutama bergantung pada suhu aluminium. Silakan beli mesin penghilang gas aluminium melalui sales@adtechamm.com<\/p>\n

\"Mesin<\/p>\n

 <\/p>\n

Aluminium Nitrogen Mesin Penghilang Gas<\/a> harus menghilangkan hidrogen dari cairan logam sebelum melakukan pembilasan cairan logam tersebut dengan gas inert nitrogen.<\/strong>
\nMemahami mekanisme penghilangan hidrogen sangat penting untuk menentukan dan memengaruhi faktor-faktor yang memengaruhi metode penghilangan yang paling efektif.
\nHidrogen atom terlarut dalam aluminium cair dan tersebar secara merata.
\nKetika gelembung gas inert kering dimasukkan ke dalam cairan logam, tekanan parsial hidrogen di dalamnya hampir nol.
\nDi dalam gelembung nitrogen, keseimbangan lokal dengan cepat tercapai antara konsentrasi H dan tekanan parsial H di lapisan batas cair.
\nLaju difusi hidrogen dari benda ke lapisan batas terbatas, dan proses rekombinasi hidrogen dari atom menjadi molekul berlangsung sangat cepat.
\nKonsentrasi hidrogen dalam gelembung-gelembung tersebut meningkat seiring dengan naiknya gelembung-gelembung tersebut ke permukaan cairan.
\nLaju transfer hidrogen tidak hanya berkaitan dengan laju difusi, tetapi juga dengan luas total antarmuka gelembung.
\nAliran gas inert tertentu memiliki luas antarmuka yang lebih besar untuk gelembung-gelembung yang lebih kecil.<\/p>\n

Selain itu, seiring gelembung-gelembung tersebut menjadi semakin kecil<\/strong>r, lamanya waktu setiap gelembung bertahan di dalam cairan meleleh menjadi lebih lama. Hal ini disebabkan oleh berkurangnya kecepatan terminal, yang mengakibatkan waktu pengiriman hidrogen menjadi lebih lama.
\nZona reaksi yang lebih dalam memberikan waktu lebih lama untuk mencapai kesetimbangan, karena gelembung-gelembung tersebut bertahan lebih lama di dalam cairan sebelum mencapai permukaan.
\nOleh karena itu, Mesin Penghilang Gas Nitrogen pada Aluminium harus menghasilkan gelembung-gelembung terkecil di bagian dasar wadah pengolahan.
\nHal ini dicapai pada kecepatan rotor yang tinggi; cairan tersebut juga diaduk untuk mendapatkan distribusi hidrogen yang merata.
\nProses dengan pistol semprot merupakan tahap awal dalam penghilangan gas pada skala industri, namun pistol semprot sering kali menghasilkan gelembung-gelembung kasar berdiameter antara 10 dan 50 mm, dengan distribusi ukuran gelembung yang luas, serta menghasilkan homogenitas lelehan yang terbatas.
\nBatu bata berpori, baik yang dipasang pada ujung pistol semprot maupun di dasar tungku, umumnya menghasilkan gelembung yang lebih halus dengan diameter 10 hingga 20 mm; namun, meskipun menggunakan batu bata tersebut, homogenisasi dan distribusi gelembung tetap belum optimal.
\nAkhirnya, pengembangan sistem jet putar yang dilengkapi rotor berhasil mengatasi masalah distribusi gas yang tidak merata dan menghasilkan gelembung dengan diameter berkisar antara 3 hingga 10 mm.<\/p>","protected":false},"excerpt":{"rendered":"

Aluminium Nitrogen Degassing Machine is used to control the levels of hydrogen, alkali metals and inclusions in the aluminum melt before casting. In the past two decades, Aluminium Nitrogen Degassing Machine has been relatively comprehensively developed. Hydrogen solubility and influencing parameters Aluminum melt always interacts…<\/p>","protected":false},"author":1,"featured_media":7410,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[52],"tags":[],"yoast_head":"\nAluminium Nitrogen Degassing Machine | Adtech China<\/title>\n<meta name=\"description\" content=\"Aluminium Nitrogen Degassing Machine is used to control the levels of hydrogen, alkali metals and inclusions in the aluminum melt before casting.\" \/>\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\/aluminium-nitrogen-degassing-machine\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aluminium Nitrogen Degassing Machine | Adtech China\" \/>\n<meta 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