{"id":8969,"date":"2023-02-27T06:06:23","date_gmt":"2023-02-27T06:06:23","guid":{"rendered":"https:\/\/www.aluminiumceramicfiber.com\/?p=8969"},"modified":"2023-02-27T06:06:23","modified_gmt":"2023-02-27T06:06:23","slug":"cause-analysis-and-measures-of-blasting-of-caster-tip","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/id\/cause-analysis-and-measures-of-blasting-of-caster-tip\/","title":{"rendered":"Analisis Penyebab dan Langkah-Langkah Penanganan Terjadinya Kerusakan pada Ujung Roda Caster"},"content":{"rendered":"

Analisis Penyebab dan Langkah-Langkah Penanganan Ledakan pada Tips untuk roda<\/a><\/p>\n

Penyebab ledakan nozzle<\/p>\n

Ledakan nozel berarti bahwa selama proses pengecoran dan penggulungan pelat vertikal, gas yang terdapat di area pengecoran dan penggulungan atau di dalam nozel keluar secara mendadak dari aluminium cair.
\nfenomena.
\nAda dua bentuk utama ledakan nosel pengecoran: yang pertama adalah ledakan yang mengarah ke arah celah rol; yang kedua adalah ledakan yang mengarah ke nosel-celah rol.
\n(1) Ledakan nosel pengecoran ke arah celah rol terutama terjadi pada saat pelat vertikal dilepaskan, dan cairan aluminium bersuhu tinggi mengalir secara mandiri dari pipa pengumpan
\nKetika aliran keluar bersentuhan dengan ujung Caster yang memiliki kadar air tinggi dan permukaan rol yang basah, air tersebut langsung menguap, dan volumenya membesar ribuan kali lipat.
\nMassa udara yang mengandung uap air menembus rongga bagian dalam nosel pengecoran atau bagian yang rapuh pada bagian depan cairan aluminium di dekat mulut bibir pengecoran, lalu langsung keluar, sehingga mengakibatkan
\nfenomena ledakan.
\n(2) Gelembung-gelembung udara kecil dalam aluminium cair terus berkumpul di area pengecoran dan bagian tepi, sehingga membentuk gelembung besar dengan tekanan tertentu.
\nGelembung, ada dua cara bagi gelembung besar untuk keluar. Yang pertama adalah gelembung besar tersebut menembus cairan aluminium di antara nosel dan celah rol, lalu menguap.<\/p>\n

Tegangan membran meluap dari celah rol nosel, sehingga menyebabkan ledakan. Yang kedua adalah bahwa tekanan internal gelembung besar tersebut lebih besar daripada viskositas ujung alat tuang.<\/p>\n

Serangan gabungan tersebut membuat ujung Caster rusak dan terlempar, sehingga memicu ledakan
\nFaktor-Faktor yang Mempengaruhi Terjadinya Ledakan Nozzle<\/p>\n

\"ujung

ujung roda<\/p><\/div>\n

 <\/p>\n

1. Pengaruh kadar air pada coran Tips untuk Caster<\/a> dan kadar air pada lem perekat cetakan Tips untuk roda<\/a>;<\/p>\n

2. Pengaruh permukaan rol basah:
\nPada tahap pengaplikasian grafit pada permukaan rol pelat vertikal, jika jumlah grafit yang disemprotkan oleh pistol semprot terlalu banyak, kelembapan dalam emulsi grafit tidak dapat menguap tepat waktu,
\nSebuah area luas yang terdiri dari tetesan-tetesan air halus akan terbentuk di permukaan rol, dan bahkan untaian tetesan air pun akan terbentuk. Ketika kelembapan udara tinggi dan permukaan rol bersentuhan dengan suhu rendah, kapasitas cairan<\/p>\n

mudah membentuk tetesan air;<\/p>\n

Ketika pelat vertikal mengalirkan terak, permukaan rol yang basah bersentuhan dengan aluminium cair bersuhu tinggi, uap air langsung menguap dan mengembang dengan cepat, sehingga mudah masuk ke celah rol
\nArah aliran meledak ke depan; akibat kenaikan suhu permukaan rol yang lambat selama proses aliran terak pada pelat vertikal, uap air dalam jumlah besar yang dihasilkan setelah gasifikasi kembali bersentuhan dengan rol
\nAir tersebut mengembun menjadi tetesan-tetesan halus, yang mudah menetes ke bibir cor di antara rol-rol nosel, sehingga meningkatkan kadar air pada bibir cor.<\/p>\n

3. Pengaruh kandungan gas dalam aluminium cair;
\nSelama proses stand-up, karena hasil pembakaran gas cair mengandung uap air dalam jumlah besar, pada saat yang sama gas cair tersebut dikompresi di udara
\nPembakaran yang dipicu oleh aliran udara terkompresi secara terus-menerus mengikis lapisan aluminium oksida pada permukaan saluran, sehingga mempercepat penguapan kelembapan dan aluminium yang terdapat di udara
\nKecepatan reaksi cairan tersebut menyebabkan kandungan hidrogen dalam cairan aluminium meningkat secara signifikan; ketika ion hidrogen dalam cairan aluminium berada di rongga bagian dalam nosel, di satu sisi, hidrogen
\nDi sisi lain, ion-ion tersebut membentuk gas hidrogen; selama proses kondensasi di area pengecoran dan penggulungan, seiring turunnya suhu, ion-ion hidrogen yang terkandung dalam cairan aluminium
\nPresipitasi menghasilkan gas hidrogen, yang menyebabkan terbentuknya banyak gelembung kecil di area pengecoran dan penggulungan, dan akhirnya meledak.
\nLangkah-langkah untuk mencegah ledakan nosel<\/p>\n

1. Kurangi kadar air pada nosel<\/p>\n

2. Kurangi kelembapan permukaan rol pengecoran<\/p>\n

3. Mengurangi kandungan hidrogen dalam cairan aluminium yang dikeluarkan<\/p>\n

4. Mengoptimalkan proses pengoperasian papan vertikal
\n\u2460 Pengendalian proses aliran terak: Kecepatan aliran terak harus lebih tinggi apabila papan vertikal yang sempit lebih tinggi daripada papan yang lebar, dan papan vertikal yang sempit
\nSuhu terak yang mengalir harus lebih tinggi daripada suhu pelat lebar, dan waktu aliran terak harus sedapat mungkin diperpanjang agar gas dapat keluar sebanyak mungkin.
\n\u2461Pengendalian proses penerbitan:
\nSetelah papan vertikal dikeluarkan dari cetakan, biarkan permukaan papan tetap dalam keadaan panas secara terus-menerus, karena hal ini bermanfaat bagi area rongga bagian dalam nosel pengecoran<\/p>\n

Gelembung-gelembung udara kecil terus keluar dari daerah tropis dalam jumlah sedikit, sehingga mengurangi risiko ledakan nosel.<\/p>","protected":false},"excerpt":{"rendered":"

Cause Analysis and Measures of Blasting of Caster tip Causes of nozzle explosion Nozzle explosion means that during the process of casting and rolling the vertical plate, the gas in the casting and rolling area or the nozzle escapes from the molten aluminum instantaneously. phenomenon. There are two main forms of casting nozzle explosion: one […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86,921],"tags":[923],"class_list":["post-8969","post","type-post","status-publish","format-standard","hentry","category-blog","category-caster-tip","tag-caster-tip"],"yoast_head":"\nCause Analysis and Measures of Blasting of Caster tip<\/title>\n<meta name=\"description\" content=\"The influence of the water content of the casting Caster tip and the water content of the bonding glue of the casting Caster tip.\" \/>\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\/cause-analysis-and-measures-of-blasting-of-caster-tip\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta 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