{"id":3340,"date":"2020-10-16T05:46:22","date_gmt":"2020-10-16T05:46:22","guid":{"rendered":"https:\/\/www.aluminiumceramicfiber.com\/?p=3340"},"modified":"2020-10-16T05:46:22","modified_gmt":"2020-10-16T05:46:22","slug":"purity-of-aluminum","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/id\/purity-of-aluminum\/","title":{"rendered":"Kemurnian Aluminium"},"content":{"rendered":"

Paduan Al-Si memiliki banyak keunggulan bawaan, yang menentukan posisinya yang semakin penting dalam industri serta aplikasi yang semakin luas. Namun, cacat utama seperti pori-pori, inklusi, dan pengotor dalam aluminium sangat memengaruhi kualitas paduan aluminium dan produk-produknya. Terutama untuk beberapa aplikasi aluminium berkinerja tinggi, dampak dari cacat-cacat ini menjadi semakin menonjol. Seiring dengan perkembangan ilmu pengetahuan dan teknologi serta produksi industri, terutama perkembangan industri penerbangan, antariksa, dan elektronik, dsb., tuntutan terhadap kemurnian aluminium pun semakin tinggi. Untuk meningkatkan kemurnian aluminium secara efektif, lelehan aluminium harus dimurnikan.<\/p>\n

\"Kemurnian<\/p>\n

Berdasarkan penelitian dan analisis, komposisi gas utama dalam aluminium cair adalah hidrogen (sekitar 80%\u201390%), sedangkan sisanya terdiri dari nitrogen, oksigen, dan karbon monoksida. Kadar gas dalam aluminium cair terutama mengacu pada kadar hidrogen. Hidrogen tersebut terutama berasal dari reaksi antara aluminium cair dan uap air. Alat, fluks, dan sebagainya yang digunakan dalam proses produksi, meskipun telah dikeringkan, tetap lebih lembap dibandingkan dengan aluminium cair, sehingga akan menyerap hidrogen. Hidrogen terdapat dalam aluminium cair dalam dua bentuk:<\/p>\n

    \n
  1. Lebih dari 90% hidrogen terlarut dalam aluminium dalam bentuk atomik sehingga membentuk hidrogen terlarut. Jenis hidrogen ini sulit dihilangkan dari aluminium cair, sering kali menyebabkan cacat pada ingot, dan sangat memengaruhi kinerja serta kualitas produk paduan aluminium.<\/li>\n
  2. Sisa hidrogen sebesar 10% teradsorpsi pada permukaan inklusi atau celah dalam bentuk gelembung molekuler, yang disebut sebagai tipe adsorpsi.<\/li>\n<\/ol>\n

    Gas yang terkandung dalam aluminium sebagian besar adalah hidrogen, dan hidrogen membentuk pori-pori saat aluminium mengeras. Adanya pori-pori ini sangat merusak kontinuitas material, sehingga material tersebut menunjukkan anisotropi yang jelas, serta sifat-sifat mekanisnya\u2014seperti ketahanan tarik, ketahanan benturan, ketahanan lelah, dan ketahanan tekanan\u2014menurun secara signifikan; konduktivitas listrik material tersebut juga berkurang. Selain itu, adanya pori-pori yang tersebar luas akan menyebabkan struktur material menjadi longgar, mengurangi kepadatan material, dan membuat material tersebut menjadi limbah akibat ketahanan terhadap tekanan yang tidak memadai. The peralatan penghilang gas<\/a> Produk yang dihasilkan oleh AdTech ini secara khusus digunakan untuk memastikan kemurnian aluminium.<\/p>","protected":false},"excerpt":{"rendered":"

    Al-Si alloy has many inherent advantages, which determine its increasingly important position in the industry and more and more extensive applications. However, the main defects such as pores, inclusions and impurities in aluminum seriously affect the quality of aluminum alloy and its products. Especially for some high-performance aluminum applications, the impact of these defects becomes […]<\/p>\n","protected":false},"author":1,"featured_media":3341,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[],"class_list":["post-3340","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nPurity of Aluminum | Degassing Of Aluminum Alloy<\/title>\n<meta name=\"description\" content=\"The degassing equipment produced by AdTech is specially used for the purity of aluminum. 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