Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中國有色金屬學(xué)報

ZHONGGUO YOUSEJINSHU XUEBAO

第18卷    第3期    總第108期    2008年3月

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文章編號:1004-0609(2008)03-0529-06
電磁軟接觸連鑄高頻磁場的數(shù)值模擬
夏小江1,王宏明1, 2,戴起勛1,李桂榮1,趙玉濤1

(1. 江蘇大學(xué) 材料學(xué)院,鎮(zhèn)江 212013;2. 上海大學(xué) 材料學(xué)院,上海 200072)

摘 要:

以經(jīng)典電磁場理論為依據(jù),利用有限元軟件ANSYS建立了電磁軟接觸連鑄高頻磁場計算的數(shù)學(xué)物理模型。用小線圈法實測了線圈內(nèi)磁感應(yīng)強度的分布,并將實測值與計算值進(jìn)行比較,驗證了模型的有效性。通過計算,分析了割縫結(jié)晶器內(nèi)磁感應(yīng)強度分布的不均勻性以及感應(yīng)線圈匝間距對結(jié)晶器內(nèi)磁感應(yīng)強度分布的影響。結(jié)果表明:切縫對結(jié)晶器中半徑小于25 mm范圍的影響很小,使接近結(jié)晶器壁處圓周上磁感應(yīng)強度分布的不均勻性較大;減小線圈匝間距可以提高結(jié)晶器內(nèi)磁感應(yīng)強度,線圈匝間距以5~10 mm為宜。

 

關(guān)鍵字: 電磁軟接觸連鑄;高頻電磁場;數(shù)值模擬

Numerical simulation of high frequency magnetic field for
XIA Xiao-jiang1, WANG Hong-ming1, 2, DAI Qi-xun1, LI Gui-rong1, ZHAO Yu-tao1

1. School of Materials, Jiangsu University, Zhenjiang 212013, China;2. School of Materials, Shanghai University, Shanghai 200072, China

Abstract:Based on electromagnetism theory, a physical and mathematical model of electromagnetic continuous casting was developed through ANSYS software. The distribution of magnetic induction density (B) in the coil was measured through the little coil method. By comparing the measured value with the calculated results, the validity of calculating the electromagnetic field through the model was proved. The ununiformity of B distribution in slit mould was analyzed. The results show that the effect of slit on the B distribution in the area with radius smaller than 25 mm is unconspicuous, and the ununiformity of B distribution in the area close to the mould wall is much remarkable. The effect of distance between coil circles on the B distribution was also studied. The results show that the magnetic induction density increases by decreasing the distance between coil circles, and the better distance between cow circles is 5−10 mm.

 

Key words: electromagnetic soft contact continuous casting; high frequency electromagnetic field; numerical simulation

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中國科學(xué)技術(shù)協(xié)會 主辦:中國有色金屬學(xué)會 承辦:中南大學(xué)
湘ICP備09001153號 版權(quán)所有:《中國有色金屬學(xué)報》編輯部
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