{"id":6079,"date":"2019-10-31T06:52:07","date_gmt":"2019-10-31T06:52:07","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=6079"},"modified":"2019-10-31T06:52:07","modified_gmt":"2019-10-31T06:52:07","slug":"foundry-casting-filtration","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/id\/foundry-casting-filtration\/","title":{"rendered":"Penyaringan Pengecoran di Pabrik Pengecoran"},"content":{"rendered":"

Penyaringan Pengecoran di Pabrik Pengecoran<\/strong><\/p>\n

Dalam proses filtrasi pengecoran di bengkel pengecoran, perlu diperhatikan beberapa hal
\nKeunggulan teknologi filtrasi keramik berbusa adalah kemampuannya yang sederhana dan mudah dalam menghilangkan inklusi terak berukuran kecil dan tersuspensi serta inklusi lainnya dalam lelehan aluminium, sehingga meningkatkan kualitas ingot, dan telah digunakan secara luas di banyak negara.<\/p>\n

Bahan yang digunakan dalam teknologi pembusaan keramik adalah papan busa keramik.
\nApabila ukuran inklusi dan inklusi terak lebih kecil daripada diameter pori pelat saringan serta terdapat tekanan hidrostatik tertentu, maka inklusi-inklusi tersebut tertahan di dalam pori-pori akibat interaksi gabungan antara dinamika fluida, inersia, pengendapan, penangkapan langsung, tabrakan, dan adsorpsi. Permukaan bagian dalam, celah lubang, dan sebagainya, berfungsi menyaring logam cair.<\/p>\n

\"Penyaringan
\nBerdasarkan pengalaman kami, beberapa hal yang perlu diperhatikan saat menggunakan sistem filtrasi busa keramik adalah:
\n1. Cairan aluminium pada tahap awal mengalir melalui pori-pori pelat saring, dan untuk itu perlu mengatasi tegangan permukaan, aliran sepanjang jalur tersebut, serta hambatan aliran lokal; oleh karena itu, harus terdapat tekanan awal tertentu.
\nHanya aliran awal logam aluminium cair yang memenuhi syarat, dan logam aluminium cair tersebut dapat disaring melalui pori-pori pelat saring. Jika tidak, proses penyaringan logam aluminium cair tersebut sulit dilakukan.
\nOleh karena itu, indentasi awal merupakan kunci dalam kemampuan pembentukan filter. Ukuran pori pelat filter, suhu lelehan, dan komposisi kimianya merupakan faktor-faktor yang memengaruhi indentasi awal.
\nDalam praktiknya, diketahui bahwa kedalaman indentasi awal umumnya berkisar dalam milimeter. Setelah pelat saringan memasuki kondisi kerja, yaitu kondisi mapan, selisih tekanan sekitar milimeter untuk memastikan proses filtrasi berjalan lancar.<\/p>\n

2. Suhu Pada tahap awal proses filtrasi pengecoran logam, suhu aluminium cair awalnya menurun seiring dengan penyerapan panas aluminium cair oleh pelat filter.
\nAgar lelehan aluminium tetap memiliki kelancaran yang memadai pada tahap awal, suhunya biasanya tidak boleh lebih rendah dari itu, dan pelat saring harus dipanaskan terlebih dahulu secara memadai sebelum digunakan, serta suhunya sebaiknya.<\/p>\n

3. Akurasi Penyaringan Secara umum, semakin kecil pori-pori pada Filter Busa Keramik Alumina<\/a>, semakin banyak partikel yang disaring; semakin tebal pelat saringnya, semakin kecil ukuran partikel yang tersaring, artinya semakin tinggi tingkat presisi penyaringannya.
\nNamun, ketebalan pelat filter yang disediakan oleh produsen papan filter biasanya tetap.
\nUntuk memastikan dan meningkatkan proses filtrasi pengecoran di bengkel pengecoran, selain menggunakan pelat filter berpori lebih kecil, cairan logam harus disempurnakan secara ketat.
\nSebaiknya gunakan papan fiberglass untuk penyaringan kasar, lalu lanjutkan dengan penyaringan menggunakan pelat saring.<\/p>\n

4. Laju aliran filtrasi Pilihlah pelat filter dengan spesifikasi yang sesuai untuk mendapatkan laju aliran filtrasi tertentu guna memastikan aliran pasokan yang stabil, yang lebih penting dalam proses pengecoran semi-kontinu.
\nLaju aliran filtrasi pelat saring berkaitan dengan rasio lubang tembus pada pelat saring tersebut.
\nUntuk pelat saring dengan ukuran tertentu, laju aliran filtrasi berbanding lurus dengan rasio lubang saring pada pelat saring tersebut. Dalam proses filtrasi pengecoran logam, partikel-partikel berporositas besar dalam lelehan aluminium memiliki efek penyumbatan pada pori-pori pelat saring, yang mengakibatkan penurunan rasio lubang saring.
\nSelain itu, partikel-partikel berukuran besar yang permukaannya tidak basah memiliki tegangan permukaan yang tinggi, sehingga akan menyulitkan logam cair aluminium untuk melewati pelat saringan atau menyebabkan laju aliran logam cair menjadi lebih lambat. Oleh karena itu, proses pemurnian logam cair perlu ditingkatkan, dan serat kaca dapat disaring terlebih dahulu atau melalui pelat saringan serta langkah-langkah lain.<\/p>","protected":false},"excerpt":{"rendered":"

Foundry Casting Filtration Foundry Casting Filtration should pay attention to several issues The advantages of the foam ceramic filtration technology are that it is simple and easy to remove small and suspended slag inclusions and inclusions in the aluminum melt, thereby improving the quality of…<\/p>","protected":false},"author":1,"featured_media":6080,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[26524],"tags":[25240],"yoast_head":"\nFoundry Casting Filtration Process in the Aluminum Foundry<\/title>\n<meta name=\"description\" content=\"Foundry Casting Filtration technology are that it is simple and easy to remove small and suspended slag inclusions and inclusions in the aluminum melt\" \/>\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\/foundry-casting-filtration\/\" 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