Optimization of Submerged Entry Nozzle of Thin-Slab Continuous Casting
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摘要: 以蘭州鋼廠薄板坯連鑄機為原型,采用信噪比正交實驗設計的方法,通過流場顯示、波高測量及沖擊力測量,研究了高拉速條件下,浸入式水口的出口角度、出口面積和插入深度對結晶器內流場變化的影響及變化規律.試驗結果表明:出口面積比為1.3,出口角度向下傾斜5°,浸入深度為280mm,可以滿足提高技速后生產的需要.Abstract: In accordance with the thin-slab caster mould of Lanzhou I&S Co., the effects of structure, immersion depth, outlet angle and shape on the fluid flow in mould by visualizing the fluid flow and measuring the wave amplitude and impetus under high speed casting have been studied. The results can provide theoretical foundation for choosing reasonable structure of SEN.
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