{"id":6803,"date":"2020-06-09T03:31:57","date_gmt":"2020-06-09T03:31:57","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=6803"},"modified":"2020-06-08T03:42:10","modified_gmt":"2020-06-08T03:42:10","slug":"filter-zirconia","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/id\/filter-zirconia\/","title":{"rendered":"Filter Zirkonia"},"content":{"rendered":"

Filter Zirkonia digunakan untuk penyaringan dan pemurnian logam cair paduan aluminium<\/strong><\/p>\n

Inklusi dan gas dalam logam memiliki pengaruh yang signifikan terhadap kekuatan material, ketahanan terhadap kelelahan, ketahanan terhadap korosi, kinerja terhadap retak akibat korosi tegangan, dan sebagainya.
\nPengendalian yang efektif terhadap inklusi teroksidasi dalam cairan logam untuk meningkatkan kualitas batang cor dan pelat canai telah menjadi tujuan bersama yang diupayakan oleh industri metalurgi, pengecoran, dan bahan di berbagai negara.
\nFilter zirkonia saat ini banyak digunakan untuk menghilangkan inklusi dalam lelehan paduan aluminium.<\/p>\n

Pembentukan inklusi dalam paduan aluminium<\/strong>
\nBeberapa inklusi dalam paduan aluminium berasal langsung dari bahan baku, sedangkan sebagian besar di antaranya terbentuk selama proses peleburan dan penuangan, terutama inklusi oksida.
\nSemua inklusi yang terbentuk sebelum proses pengecoran disebut inklusi oksidasi primer. Filter zirkonia dapat digunakan untuk menghilangkan inklusi oksidasi tersebut.<\/p>\n

Inklusi tersebar; inklusi semacam itu tidak dapat dihilangkan sepenuhnya setelah proses pemurnian. Hal ini meningkatkan viskositas logam cair dan mengurangi kemampuan aluminium untuk menyusut selama proses pembekuan.
\nInklusi oksidasi sekunder sebagian besar terbentuk selama proses pengecoran. Selama pengecoran, cairan aluminium bersentuhan dengan udara, dan oksigen serta aluminium bereaksi sehingga membentuk inklusi teroksidasi.
\nSelama proses peleburan, paduan aluminium bersentuhan dengan berbagai komponen dalam gas tungku sehingga membentuk senyawa seperti AL\u2082O\u2083.
\nAl\u2082O\u2083 dalam cairan aluminium akan meningkatkan kandungan hidrogen pada sisa lelehan aluminium.<\/p>\n

\"\"<\/p>\n

Metode pemurnian dengan filter<\/strong>
\nFilter Keramik untuk Pengecoran Logam<\/a>\u00a0Teknologi ini muncul pada tahun 1970-an dan telah digunakan secara luas di Amerika Serikat, Kanada, Jepang, Prancis, Australia, dan Swiss.
\nIni adalah metode paling efektif untuk menghilangkan inklusi dalam lelehan aluminium sebelum menggunakan pelat filter keramik berbusa pada lubang filter.<\/p>\n

Dalam beberapa tahun terakhir, sejumlah teknologi baru untuk memurnikan aluminium cair di dalam dan luar negeri juga telah diteliti, seperti pemrosesan dinamis vakum, pemurnian dengan penghilangan gas secara kontinu menggunakan ultrasonik, dan Filter Zirkonia, yang telah membuahkan hasil yang sangat baik.
\nAdapun mengenai penyaringan dengan filter logam dan kain serat, hanya inklusi berukuran besar dalam lelehan paduan aluminium yang dapat dihilangkan, namun inklusi di bawah tingkat mikron tidak dapat dihilangkan, dan filter logam tersebut juga akan mencemari paduan aluminium.
\nPenggunaan Zirconia Cff dapat menyaring inklusi-inklusi kecil serta secara signifikan meningkatkan sifat mekanis dan kualitas penampilan coran.<\/p>\n

Prinsip penyaringan<\/strong>
\nPelat filter keramik berbusa memiliki struktur jaring berlapis-lapis dan lubang-lubang tembus multidimensi, di mana lubang-lubang tersebut saling terhubung. Saat proses penyaringan berlangsung, cairan aluminium membawa inklusi-inklusi tersebut melalui saluran dan pori-pori yang berliku-liku, lalu langsung ditangkap, diserap, dan diendapkan saat bersentuhan dengan kerangka berbusa pada pelat filter. Saat logam cair mengalir melalui lubang, saluran pada pelat filter berbentuk melengkung, sehingga aliran logam cair yang melewati saluran tersebut berubah arah, dan inklusi bertabrakan dengan dinding lubang yang berfungsi sebagai landasan, lalu menempel erat pada dinding lubang tersebut.<\/p>","protected":false},"excerpt":{"rendered":"

Filter Zirconia is used for aluminum alloy melt filtration and purification Inclusions and gases in the metal have a significant impact on the material’s strength, fatigue resistance, corrosion resistance, stress corrosion cracking performance, etc. Effectively controlling the oxidized inclusions in the melt to improve the…<\/p>","protected":false},"author":1,"featured_media":6805,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[26524],"tags":[39915,39962,39918,39965,39933,39928,39964,39926,39929,39930,39931,39927,39932,39919,39943,39935,39939,39941,39934,39940,39942,39937,39938,39936,39916,39967,39921,39955,39963,39957,39953,39954,39966,39956,39947,39945,39949,39948,39946,39944,39952,39951,39950,39920,39917,39958,39959,39961,39923,39924,39922,39925,39968,39960],"yoast_head":"\nFilter Zirconia is used for aluminum alloy melt filtration and purification<\/title>\n<meta name=\"description\" content=\"Filter Zirconia 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