{"id":3346,"date":"2020-10-16T06:05:39","date_gmt":"2020-10-16T06:05:39","guid":{"rendered":"https:\/\/www.aluminiumceramicfiber.com\/?p=3346"},"modified":"2020-10-16T06:05:39","modified_gmt":"2020-10-16T06:05:39","slug":"grain-refinement-treatment","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/id\/grain-refinement-treatment\/","title":{"rendered":"Perlakuan Penghalusan Butiran"},"content":{"rendered":"<p>Perlakuan penghalusan butir adalah proses yang secara sengaja menghambat pertumbuhan kristal kolumnar dan kristal kolumnar ganda serta mendorong pembentukan kristal ekuaksial berukuran halus. Penghalusan butir tidak hanya dapat meningkatkan sifat-sifat paduan, tetapi juga mengurangi cacat seperti porositas penyusutan, retakan termal, dan lubang jarum.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3347\" src=\"https:\/\/aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/10\/Grain-Refinement-Treatment.jpg\" alt=\"Perlakuan Penghalusan Butiran\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/10\/Grain-Refinement-Treatment.jpg 500w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/10\/Grain-Refinement-Treatment-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Proses penghalusan butiran biasanya mengacu pada penambahan sejumlah tertentu <a href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/intermediate-alloy\/\">paduan menengah<\/a> dan fluks yang mengandung Ti, B, dan Zr, ditambahkan ke dalam cairan paduan Al-Si hipoeutektik, sehingga kristal primer a-Al berubah dari dendrit kasar menjadi kristal ekuaksial halus. Bahan penghalus ditambahkan ke cairan aluminium, dan ketika matriks aluminium larut, partikel senyawa intermetalik dilepaskan ke dalam cairan paduan, dan partikel-partikel ini kemudian berperan sebagai inti pembentukan kristal. Partikel penghalus yang tersebar merata dalam cairan paduan memiliki dua efek: ketika cairan paduan dituangkan ke dalam cetakan, partikel penghalus mendorong pembentukan inti kristal ekuaksial dalam jumlah besar, yang akan melepaskan panas laten kristalisasi dalam jumlah besar, sehingga membatasi pertumbuhan butir kristal; pembentukan dan pertumbuhan inti kristal berbentuk sama yang masif membatasi pertumbuhan kristal kolumnar.<\/p>\n<p>Metode penghalusan butir yang umum digunakan dan karakteristik paduan aluminium pada suhu kamar: semakin kecil butir paduan aluminium-silikon, semakin tinggi kekuatan dan kekerasan, serta semakin baik ketangguhan plastisnya. Semua faktor yang dapat mendorong pembentukan inti dan menghambat pertumbuhan butiran dapat menghaluskan butiran. Sebaliknya, semua faktor yang menghambat pembentukan inti dan mendorong pertumbuhan butiran akan membuat butiran menjadi lebih kasar. Metode-metode berikut umumnya digunakan untuk menghaluskan butiran:<\/p>\n<p>Tambahkan bahan pemurnian. Sejauh ini, bahan pemurnian butiran matang yang diproduksi di dalam dan luar negeri terutama mencakup tiga jenis berikut: Yang pertama adalah agen titanium. Jenis kedua adalah formulasi pemurnian paduan AlTiB. Batang berdiameter 95 mm banyak digunakan di dalam dan luar negeri, terutama untuk lini produksi pengecoran dan penggulungan berkelanjutan. Jenis ketiga adalah jenis senyawa TiAlB, yaitu penghalus garam. Senyawa intermetalik TiAlB dilelehkan menjadi cairan, kemudian diatomisasi menjadi bubuk dengan fluks garam untuk mensintesis penghalus bubuk.<\/p>","protected":false},"excerpt":{"rendered":"<p>Grain refinement treatment is a process of purposefully suppressing the growth of columnar crystals and double columnar crystals and promoting the formation of fine equiaxed crystals. Grain refinement can not only improve the properties of the alloy, but also reduce defects such as shrinkage porosity, thermal cracking, and pinholes. Grain refinement treatment usually refers to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3347,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[],"class_list":["post-3346","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Grain Refinement Treatment for Aluminum Alloy | Grain Refiner<\/title>\n<meta name=\"description\" content=\"Grain refinement treatment can not only improve the properties of the alloy, but also reduce defects such as shrinkage porosity.\" \/>\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.aluminiumceramicfiber.com\/id\/grain-refinement-treatment\/\" 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