{"id":7507,"date":"2020-11-02T03:24:44","date_gmt":"2020-11-02T03:24:44","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=7507"},"modified":"2020-11-02T03:24:44","modified_gmt":"2020-11-02T03:24:44","slug":"casting-thimble-2","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/id\/casting-thimble-2\/","title":{"rendered":"Cetakan Jari Penjahit"},"content":{"rendered":"<p><strong>Cetakan Jari Penjahit<\/strong> Terbuat dari dua bahan: logam lelehan berkadar silikon tinggi 140 dan Al-Si. Bahan ini memiliki ketahanan korosi yang tinggi, akurasi geometris yang tinggi, permukaan cor yang halus, masa pakai yang lama, biaya perawatan yang rendah, serta tidak menimbulkan polusi pada logam cair. Produk ini merupakan pilihan terbaik untuk pengecoran hot top, guna memenuhi kebutuhan teknis dalam produksi produk pengecoran presisi paduan aluminium, seperti produk-produk di bidang penerbangan, transportasi, dan elektronik yang membutuhkan nilai tambah tinggi serta kinerja teknis yang unggul.<\/p>\n<p>AdTech adalah produsen yang berspesialisasi dalam pengembangan bahan-bahan baru serta produksi Casting Thimble dan tabung aliran untuk proses pengecoran hot top.<br \/>\nSejak tahun 2012, perusahaan ini telah mengembangkan dan memproduksi produk-produk pengecoran hot top: casing, pelat adaptor, pelat pengalih, tutup hot top, cincin grafit, alur pengalih, dan produk-produk lainnya yang digunakan dalam peralatan pengecoran logam cair, terutama bersama dengan meja pengecoran geser gas Wagstaff. Produk-produk ini digunakan untuk pengecoran presisi. Selama proses pengecoran, cairan aluminium dari pelat distribusi dialirkan ke kristalisator cetakan untuk membentuk produk, dan produk ini telah diakui oleh lebih dari 98% pelanggan yang ada.<\/p>\n<p><img class=\"alignnone size-full wp-image-7514\" src=\"http:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/11\/Casting-Thimble.jpg\" alt=\"Cetakan Jari Penjahit\" width=\"800\" height=\"600\" srcset=\"https:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/11\/Casting-Thimble.jpg 800w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/11\/Casting-Thimble-300x225.jpg 300w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/11\/Casting-Thimble-768x576.jpg 768w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/11\/Casting-Thimble-700x525.jpg 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><a href=\"http:\/\/www.adtechamm.com\/id\/hot-top-casting-series\/\">Pengecoran bagian atas panas<\/a> Istilah ini merujuk pada cetakan pengecoran yang memiliki area dengan kinerja retensi panas yang baik di bagian atas cetakan. Tujuan utama dari pengecoran hot top adalah untuk memperlambat pendinginan awal pada bagian atas cetakan, bukan untuk memperlambat pendinginan awal pada seluruh cetakan.<\/p>\n<p>Pengecoran aluminium umumnya menggunakan metode pengecoran semi-kontinu vertikal atau horizontal yang didinginkan dengan air.<br \/>\nUntuk meningkatkan struktur dan kualitas permukaan billet dalam proses pengecoran vertikal, telah dikembangkan pula tangki kristalisasi elektromagnetik, tangki kristalisasi pendek, serta metode pengecoran hot top (lihat proses pemadatan logam).<br \/>\nMetode pengecoran semi-kontinu yang didinginkan dengan air dilakukan dengan memasukkan logam cair ke dalam kristalisator yang didinginkan dengan air melalui saluran pengalir, sehingga logam cair tersebut didinginkan hingga membentuk lapisan padat, yang kemudian ditarik oleh bagian dasar mesin pengecoran atau jatuh keluar dari kristalisator karena beratnya sendiri untuk membentuk ingot.<br \/>\nParameter proses sangat bervariasi tergantung pada komposisi paduan dan ukuran billet.<br \/>\nSecara umum, kecepatan pengecoran dan laju pendinginan sebaiknya ditingkatkan semaksimal mungkin, sedangkan ketinggian tangki kristalisasi sebaiknya dikurangi. Suhu pengecoran biasanya 50 hingga 110\u00b0C lebih tinggi daripada garis likuidus paduan tersebut. Selain itu, proses pengecoran berkelanjutan dan penggulungan strip aluminium telah dikembangkan.<\/p>\n<p>Paduan aluminium cor memiliki sistem paduan yang sama dengan paduan aluminium tempa, serta memiliki mekanisme penguatan yang sama dengan paduan aluminium tempa (kecuali penguatan akibat regangan). Perbedaan utamanya adalah bahwa kandungan maksimum unsur paduan silikon dalam paduan aluminium cor melebihi kandungan pada sebagian besar paduan aluminium tempa. Kandungan silikon dalam paduan tersebut.<br \/>\nSelain unsur-unsur penguat, paduan aluminium cor juga harus mengandung unsur eutektik (biasanya silikon) dalam jumlah yang cukup, sehingga paduan tersebut memiliki fluiditas yang cukup tinggi dan mudah mengisi celah-celah penyusutan pada coran selama proses pengecoran. Saat ini, paduan dasar hanya terdiri dari 6 kategori berikut ini<br \/>\nPaduan AI-Cu<br \/>\nPaduan AI-Cu-Si<br \/>\nPaduan AI-Si<br \/>\nPaduan AI-Mg<br \/>\nPaduan AI-Zn-Mg<br \/>\nPaduan AI-Sn.<\/p>\n<p>Sifat-sifat pengecoran biasanya mencakup fluiditas, penyusutan, porositas, segregasi komponen, penyerapan gas, tegangan pengecoran, dan kecenderungan retak dingin, dan sebagainya.<\/p>","protected":false},"excerpt":{"rendered":"<p>Casting Thimble is made of two materials: high silicon melting 140 and Al-Si. It has strong corrosion resistance, high geometric accuracy, smooth casting surface, long life, low maintenance cost, and no pollution to molten metal. It is the best choice for hot top casting ,&#8230;<\/p>","protected":false},"author":1,"featured_media":7514,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[52],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Casting Thimble | Adtech China - Aluminium hot-top Casting<\/title>\n<meta name=\"description\" content=\"Casting Thimble is made of two materials: high silicon melting 140 and Al-Si. 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