{"id":7516,"date":"2020-11-02T03:34:20","date_gmt":"2020-11-02T03:34:20","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=7516"},"modified":"2020-11-02T03:34:20","modified_gmt":"2020-11-02T03:34:20","slug":"riser-sleeve","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/id\/riser-sleeve\/","title":{"rendered":"Selongsong Riser"},"content":{"rendered":"

Selongsong Riser<\/strong> Terbuat dari dua bahan, yaitu paduan silikon tinggi 140 dan Al-Si. Produk 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

Pengecoran hot-top merujuk pada metode pengecoran di mana terdapat bagian dengan kinerja retensi panas yang baik di bagian atas cetakan, yang digunakan untuk memperlambat pendinginan awal pada bagian atas cetakan, bukan untuk memperlambat pendinginan awal seluruh cetakan. Selongsong riser merupakan salah satu bagian yang cukup penting sebelum aluminium cair memasuki kristalisator.<\/p>\n

\"Selongsong<\/p>\n

Pilihlah aksesori pemasangan platform peralatan pengecoran hot top dengan spesifikasi yang sesuai<\/strong>
\nPasang pelat shunt, selongsong, pelat adaptor, alur shunt, dan cincin grafit di bagian atas platform.
\nCasing, pelat adaptor, dan cincin grafit dipasang di dalam cetakan untuk memastikan kebersihan, tidak ada kerusakan, dan tidak ada celah.
\nSebaiknya gunakan kertas serat keramik atau selimut serat keramik untuk menutup sisi-sisi dan bagian bawahnya guna membantu mempertahankan panas.<\/p>\n

Setelah platform pengecoran hot-top terintegrasi dipasang<\/strong>, panaskan platform peralatan standar yang telah terpasang secara merata hingga suhu 260\u2013350 \u00b0C. Pemanggangan dengan listrik atau gas dapat digunakan. Api terbuka tidak boleh bersentuhan dengan lapisan dalam produk, karena hal tersebut dapat merusak retakan. Pengguna wajib menghilangkan air kristal yang terserap untuk penggunaan yang aman dan efisien.<\/p>\n

Karakteristik proses pengecoran hot top<\/strong>
\n1. Pengecoran bagian atas panas<\/a> Hal ini tidak hanya bermanfaat untuk meningkatkan kualitas permukaan ingot, tetapi juga bermanfaat bagi proses pemadatan terarah dari bawah ke atas serta penyusutan tambahan pada ingot. Jika pelat saringan dipasang bersamaan di bagian atas yang panas, hal itu dapat mencegah terak cair masuk ke dalam ingot.
\n2. Selama beberapa waktu setelah cairan aluminium masuk ke dalam kristalisator tembaga, cairan logam di bagian atas yang panas pada dasarnya masih dapat mempertahankan suhu yang lebih tinggi, sehingga menciptakan kondisi yang baik bagi gas yang mengendap untuk mengapung selama proses pemadatan cairan logam serta terjadinya penyusutan pemadatan tambahan.<\/p>","protected":false},"excerpt":{"rendered":"

Riser Sleeve is made of two materials of 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…<\/p>","protected":false},"author":1,"featured_media":7517,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[26523],"tags":[],"yoast_head":"\nAluminium casting Riser Sleeve | Adtech China - sales@adtechamm.com<\/title>\n<meta name=\"description\" content=\"Riser Sleeve is made of two materials of high silicon melting 140 and Al-Si. 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