{"id":2767,"date":"2017-11-17T07:02:07","date_gmt":"2017-11-17T07:02:07","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=2767"},"modified":"2017-11-17T07:02:07","modified_gmt":"2017-11-17T07:02:07","slug":"ceramic-foam-filters-sizing","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/id\/ceramic-foam-filters-sizing\/","title":{"rendered":"Penentuan Ukuran Filter Busa Keramik"},"content":{"rendered":"<p>Penentuan Ukuran Filter Busa Keramik<\/p>\n<p>Untuk mendapatkan laju pengisian cetakan yang optimal, penting untuk menghitung ukuran filter yang tepat untuk setiap aplikasi pengecoran tertentu. Filter harus cukup besar agar tidak menghambat atau menghalangi aliran logam cair, maupun tersumbat oleh inklusi yang tertahan sebelum proses pengecoran selesai. Agar aliran logam cair yang dihasilkan sedekat mungkin dengan aliran asli tanpa filter, ukuran filter harus beberapa kali lipat lebih besar daripada area penyempitan pada sistem saluran pengaliran. Parameter pengecoran berikut ini harus dipertimbangkan dengan cermat.<\/p>\n<p>Faktor-faktor laju aliran \u2013 angka ukuran pori filter (10, 15, 25) dan luas penyempitan pada sistem katup.<\/p>\n<p>Faktor-faktor penyumbatan \u2013 ukuran pori filter (10, 15, 25) dan kualitas logam cair, termasuk: bahan baku peleburan, komposisi kimia paduan, perlakuan terhadap logam cair, serta jumlah logam yang akan disaring.<\/p>\n<p>Untuk mencapai laju aliran yang memadai, ukuran filter harus disesuaikan sedemikian rupa sehingga luas permukaannya beberapa kali lipat lebih besar daripada total luas penyempitan pada sistem saluran cetakan. Seiring meningkatnya rasio luas filter terhadap luas penyempitan, laju pengisian cetakan pun meningkat secara eksponensial. Pada rasio luas filter terhadap luas penyempitan yang kurang dari empat, filter secara signifikan memperpanjang waktu pengisian dibandingkan dengan pengisian tanpa filter.<\/p>\n<p>Pada rasio luas filter terhadap luas choke di atas delapan, waktu penuangan hampir tidak terpengaruh oleh filter. Jika rasio tersebut berada dalam kisaran empat hingga delapan, mungkin akan terlihat sedikit peningkatan pada waktu penuangan.<\/p>\n<p>Secara umum, disarankan untuk menggunakan rasio luas filter terhadap luas choke minimal empat, namun untuk coran berpenampang tipis, rasio tersebut harus lebih tinggi. Ukuran pori yang lebih halus (#15 dan 25) sedikit meningkatkan hambatan aliran pada filter dan mungkin memerlukan sedikit peningkatan luas filter. Dengan mengalikan luas choke dengan rasio luas filter\/luas choke yang diinginkan, akan diperoleh ukuran filter yang diperlukan.<\/p>\n<p>Penting untuk menggunakan luas filter efektif dalam perhitungan. Luas filter efektif didefinisikan sebagai luas bagian masuk filter yang tidak tertutupi oleh cetakan pada cetakan logam. Faktor penyumbatan dimaksudkan sebagai pedoman. Banyak pabrik pengecoran yang menerapkan praktik pengolahan logam yang baik mampu mengalirkan aluminium jauh lebih banyak per inci persegi daripada yang tercantum dalam tabel.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ceramic Foam Filters Sizing To obtain an optimum mold fill rate, it is important to calculate the proper filter size for each specific casting application. The filter must be large enough so that it doesn&#8217;t retard or choke the flow of molten metal or become&#8230;<\/p>","protected":false},"author":1,"featured_media":2768,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[52],"tags":[643,639],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ceramic Foam Filters Sizing | Adtech China<\/title>\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\/ceramic-foam-filters-sizing\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ceramic Foam Filters Sizing | Adtech China\" \/>\n<meta property=\"og:description\" content=\"Ceramic Foam Filters Sizing To obtain an optimum mold fill rate, it is important to calculate the proper filter size for each specific casting application. 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