{"id":6467,"date":"2021-07-09T03:21:34","date_gmt":"2021-07-09T03:21:34","guid":{"rendered":"https:\/\/www.aluminiumceramicfiber.com\/?p=6467"},"modified":"2021-07-09T03:21:34","modified_gmt":"2021-07-09T03:21:34","slug":"headbox-and-tundish","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/id\/headbox-and-tundish\/","title":{"rendered":"Headbox dan Tundish"},"content":{"rendered":"

Ujung cetakan dan nosel, headbox yang dibentuk dengan vakum, serta tundish merupakan faktor-faktor kunci untuk menjamin kelancaran produksi pengecoran dan penggulungan gulungan aluminium.<\/p>\n

Setelah menurunkan suhu headbox dan tundish (juga disebut front box) yang dibentuk dengan vakum, cacat butiran kasar yang disebabkan oleh suhu yang terlalu tinggi dapat dikurangi, reaksi oksidasi dan pembentukan terak pada logam cair pada suhu tinggi dapat diminimalkan, serta kualitas pelat cor-gulung dapat terjamin.<\/p>\n

\"Headbox<\/p>\n

Akibat peningkatan kecepatan pengecoran, ukuran fase kedua pada struktur dengan perbesaran tinggi dari gulungan yang dicor dan digulung menjadi lebih kecil, tersebar, dan terdistribusi secara lebih merata. Partikel-partikel senyawa logam intermediet yang halus tersebut dapat meningkatkan sifat mekanis bahan, serta dapat meningkatkan kekuatan bahan tanpa mengurangi plastisitasnya.<\/p>\n

Seiring dengan peningkatan kecepatan pengecoran-penggulungan, kondisi pemadatan logam cair menjadi lebih baik, kepadatan struktur internal gulungan hasil pengecoran-penggulungan meningkat, dan kualitas struktur internalnya pun meningkat secara signifikan. Namun, peningkatan kecepatan pengecoran-penggulungan juga terbatas pada rentang tertentu. Seiring dengan meningkatnya ketinggian vertikal interval kristalisasi paduan, kecepatan pengecoran-penggulungan harus dikurangi sesuai dengan itu.<\/p>\n

Untuk mengatasi masalah pendinginan dan peningkatan kecepatan pada proses pengecoran dan penggulungan, seiring dengan peningkatan celah rol nosel, metode distribusi aliran nosel harus ditingkatkan, serta keseragaman suhu dan keseragaman tekanan fluida pada rongga nosel harus ditingkatkan dengan memperbaiki distribusi blok penghalang di dalam tips untuk caster<\/a>. Untuk menyesuaikan dengan proses pendinginan serta mempercepat proses pengecoran dan penggulungan, intensitas pendinginan harus ditingkatkan guna memastikan keseimbangan panas dalam proses produksi.<\/p>\n

Menurunkan suhu headbox dan tundish serta meningkatkan kecepatan pengecoran tidak hanya dapat meningkatkan efisiensi produksi, tetapi juga memperbaiki kelancaran aliran logam cair dan kondisi pengendapan logam cair, serta meningkatkan kepadatan struktur internal gulungan yang dicor dan digulung.<\/p>","protected":false},"excerpt":{"rendered":"

The casting tips and nozzle, vacuum-formed headbox and tundish are the key factors to ensure aluminum coil casting and rolling production. After lowering the vacuum-formed headbox and tundish (also called front box) temperature, the coarse grain defects caused by the excessive temperature can be reduced, the oxidation slagging reaction of the melt at high temperature […]<\/p>\n","protected":false},"author":1,"featured_media":6468,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[],"class_list":["post-6467","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nHeadbox and Tundish -sales@aluminiumceramicfiber.com<\/title>\n<meta name=\"description\" content=\"The casting tips and nozzle, vacuum-formed headbox and tundish are the key factors to ensure aluminum coil casting and rolling production.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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