menyaring aluminium cair<\/a> bahan pengotor dengan harga terjangkau dan kualitas tinggi, yang dapat meningkatkan kualitas coran, mengurangi tingkat limbah, menghasilkan permukaan coran yang lebih halus, serta meningkatkan sifat mekanis coran.<\/p>\n![\"Filter](\"http:\/\/www.adtechamm.com\/wp-content\/uploads\/2021\/06\/Nepal-China-Foundry-Filter.jpg\")
<\/p>\n
Ada tiga jenis filter yang umum digunakan dalam produksi pengecoran<\/strong>
\nFilter serat kaca: Terbuat dari serat kaca dan resin yang tahan suhu tinggi, yang mampu menyaring partikel yang ukurannya lebih besar daripada ukuran pori-pori jaring. Efektivitasnya sedang, harganya terjangkau, dan proses pembuatannya sederhana.
\nFilter keramik berlubang lurus: Filter ini dibuat melalui proses pengepresan atau ekstrusi dari bahan keramik; efektivitas penyaringannya lebih rendah daripada filter serat, namun tidak sebaik filter keramik berbusa.
\nFilter keramik berbusa: diluncurkan pada tahun 1978. Awalnya digunakan pada paduan logam non-besi. Sejak tahun 1985, filter ini telah digunakan untuk aluminium cor dan baja cor. Proses produksinya menggunakan plastik berbusa sebagai kerangka, dilapisi dengan bubur keramik, dan dipanggang pada suhu tinggi. Filter ini memiliki kemampuan penyaringan yang baik.<\/p>\nEfek penyaringan yang dihasilkan oleh filter keramik berbusa ini didukung oleh mekanisme kerjanya yang menyeluruh<\/strong>
\nPenyaringan mekanis: Partikel yang ukurannya lebih besar daripada lubang saringan akan tertahan.
\nFungsi filter cake: Selama aliran logam cair aluminium, inklusi berukuran lebih besar terus-menerus terhalang dan menumpuk. Pada saat yang sama, saluran yang dilalui logam cair tersebut secara bertahap menyempit, sehingga inklusi berukuran lebih kecil pun terhalang.
\nAdsorpsi: Inklusi memiliki afinitas yang lebih besar terhadap bahan keramik. Di dalam saluran filter yang rumit, logam cair memiliki luas permukaan kontak yang lebih besar dengan filter, sehingga inklusi mudah teradsorpsi pada dinding saluran.
\nEfek rektifikasi: Selama proses penuangan, setelah logam cair yang mengalir dengan kecepatan tinggi melewati tangki filter, laju aliran berkurang, dan aliran turbulen cenderung berubah menjadi aliran laminar, sehingga mengurangi percikan logam cair dan meminimalkan pembentukan terak teroksidasi; hal ini memberikan waktu yang cukup bagi kotoran untuk mengapung dan tertahan di dalam kotak filter.<\/p>","protected":false},"excerpt":{"rendered":"Nepal China Foundry Filter prevents inclusions in molten metal from entering the casting platform and eliminates inclusion defects. In recent years, with the rapid development of automobile manufacturers, the output of automobile castings has increased year by year. People pay more and more attention to…<\/p>","protected":false},"author":1,"featured_media":9229,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[26524],"tags":[64420],"yoast_head":"\n
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