{"id":3509,"date":"2020-10-22T08:59:54","date_gmt":"2020-10-22T08:59:54","guid":{"rendered":"https:\/\/www.aluminiumceramicfiber.com\/?p=3509"},"modified":"2020-10-22T08:59:54","modified_gmt":"2020-10-22T08:59:54","slug":"bubbles-on-aluminum-products","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/id\/bubbles-on-aluminum-products\/","title":{"rendered":"Gelembung pada Produk Aluminium"},"content":{"rendered":"

Gelembung yang menonjol muncul di permukaan produk aluminium; yang masih utuh disebut gelembung, sedangkan yang telah pecah disebut \u201ckulit\u201d. Gelembung-gelembung ini umumnya tersusun secara linier searah ekstrusi, yang dapat diamati dengan mata telanjang. Fenomena ini umumnya muncul pada bagian awal dan akhir produk paduan lunak. Penyebab utamanya adalah struktur internal ingot memiliki cacat seperti kelonggaran, pori-pori, retakan internal, atau kecepatan ekstrusi pada tahap pengisian terlalu cepat, pembuangan udara tidak baik, dan udara tersedot ke dalam logam. Ketika rasio panjang terhadap diameter ingot lebih besar dari 4-5, deformasi ganda drum akan terjadi selama pengisian, sehingga menciptakan ruang tertutup di tengah silinder ekstrusi. Seiring berjalannya proses pengisian, volume ruang ini berkurang dan tekanan gas meningkat, yang kemudian masuk ke dalam retakan mikro pada permukaan ingot. Retakan-retakan ini menyatu saat melewati cetakan, sehingga gelembung terbentuk di permukaan produk, atau lapisan kulit terbentuk setelah retakan tersebut gagal menyatu saat keluar dari lubang cetakan.<\/p>\n

\"Gelembung<\/p>\n

Metode Penghilangan Gelembung pada Produk Aluminium<\/strong><\/p>\n

Meningkatkan tingkat pemurnian dan penghilangan gas<\/a> dan proses pengecoran untuk mencegah terjadinya cacat seperti porositas, struktur yang longgar, dan retakan pada ingot.<\/p>\n

Segera ganti lapisan silinder ekstrusi yang sudah terlalu aus. Silinder harus dibersihkan secara menyeluruh saat mengganti paduan logam.<\/p>\n

Kurangi kecepatan pada tahap pengisian ekstrusi.<\/p>\n

Kurangi pelumasan pada bantalan ekstrusi dan cetakan.<\/p>\n

Lakukan dengan ketat, potong sisa bahan dengan benar, dan buang seluruhnya.<\/p>\n

Dengan menggunakan metode pemanasan gradien ingot, meskipun suhu bagian kepala ingot tinggi dan suhu bagian ekornya rendah, bagian kepala lah yang terlebih dahulu mengalami deformasi saat pengisian, dan gas di dalam silinder secara bertahap dikeluarkan melalui celah antara gasket dan dinding silinder ekstrusi.<\/p>","protected":false},"excerpt":{"rendered":"

Protruding bubbles appear on the surface of aluminum products, the ones that are complete are called bubbles, and the ones that have burst are called skin. They are mostly arranged in a linear manner in the extrusion direction, which can be judged by the naked eye. It mostly appears at the beginning and end of […]<\/p>\n","protected":false},"author":1,"featured_media":3510,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[],"class_list":["post-3509","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nBubbles on Aluminum Products Elimination Method<\/title>\n<meta name=\"description\" content=\"Bubbles on Aluminum Products Elimination Method: Improve the level of refining, degassing and casting to prevent defects in the ingot.\" \/>\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.aluminiumceramicfiber.com\/id\/bubbles-on-aluminum-products\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bubbles on Aluminum Products Elimination Method\" \/>\n<meta property=\"og:description\" content=\"Bubbles on Aluminum Products Elimination Method: Improve the level of refining, degassing and casting to prevent defects in the ingot.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.aluminiumceramicfiber.com\/id\/bubbles-on-aluminum-products\/\" \/>\n<meta property=\"og:site_name\" content=\"Tap Out Cone,Refining Flux,Ceramic Foam Filter,Aluminum Cast Materials\" \/>\n<meta property=\"article:published_time\" content=\"2020-10-22T08:59:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/10\/Bubbles-on-Aluminum-Products.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"adtechnew\" \/>\n<meta name=\"twitter:card\" 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