本文選題：空心環(huán)形件電渣熔鑄 + 內(nèi)結(jié)晶器�。� 參考：《東北大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年08期

【摘要】："空心環(huán)形件電渣熔鑄"內(nèi)結(jié)晶器對(duì)流換熱系數(shù)αin是衡量其內(nèi)結(jié)晶器冷卻效果的核心參數(shù).本文將實(shí)測(cè)的內(nèi)結(jié)晶器銅板水冷面溫度、流體溫度值代入基本算式求取并利用有限元分析驗(yàn)證來(lái)確定αin的取值范圍,通過比照水平環(huán)形套管對(duì)流換熱系數(shù)的經(jīng)驗(yàn)公式來(lái)確定計(jì)算αin的經(jīng)驗(yàn)公式.該經(jīng)驗(yàn)公式用溫差函數(shù)、效應(yīng)因子、速度函數(shù)解析了內(nèi)結(jié)晶器水模型溫差、短管效應(yīng)、內(nèi)外徑及高度等形狀因素對(duì)αin的綜合影響,提供了αin數(shù)據(jù)庫(kù)建立的理論依據(jù).
[Abstract]:The convection heat transfer coefficient 偽 _ (in) of the inner mold is the core parameter to evaluate the cooling effect of the inner mold. In this paper, the measured water surface temperature and fluid temperature of copper plate in the inner crystallizer are calculated by the basic formula and the range of 偽 in is determined by finite element analysis. By comparing the empirical formula of convection heat transfer coefficient of horizontal annular casing, the empirical formula for calculating 偽 in is determined. The empirical formula uses the temperature difference function, the effect factor and the velocity function to analyze the comprehensive influence of the shape factors such as temperature difference, short tube effect, inner and outer diameter and height on 偽 in, which provides the theoretical basis for the establishment of 偽 in database.
【作者單位】： 東北大學(xué)冶金學(xué)院;沈陽(yáng)鑄造研究所;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51674070,51434004,51475313)
【分類號(hào)】：TG23

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本文編號(hào)：1995660