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模具對(duì)Nb Ti/Cu超導(dǎo)線集束拉拔芯絲畸變的影響
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陜西省科技重大專(zhuān)項(xiàng)(2020ZDZX04-01-02)資助; 陜西省重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2020ZDLGY01-08)


Influence of Die on Distortion of Core Wires in NbTi/Cu Superconducting Wire during Bundle-drawing
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    摘要:

    使用有限元軟件平臺(tái)ABAQUS對(duì)NbTi/Cu多芯復(fù)合超導(dǎo)線集束拉拔過(guò)程進(jìn)行數(shù)值模擬,研究了拉拔模具參數(shù)對(duì)芯絲畸變程度的影響。通過(guò)引入畸變因子進(jìn)行量化分析,獲得了集束拉拔過(guò)程中芯絲畸變極小值所對(duì)應(yīng)的參數(shù)區(qū)間。結(jié)果表明:工作錐半角為6°～8°,定徑帶長(zhǎng)度4.5～5.5 mm,道次加工率為20%～25%時(shí),NbTi/Cu多芯復(fù)合超導(dǎo)線芯絲畸變存在極小值。

    Abstract:

    The finite element software platform ABAQUS was used to simulate the bundling and drawing process of NbTi/Cu multi-filamentary superconducting wires. The influence of drawing die parameters on the degree of core wire distortion was studied. The distortion factor is introduced to quantify the distortion of core wires,and the parameter interval corresponding to the minimum value of core wire distortion in the bundling and drawing process of NbTi/Cu multi-filamentary superconducting wires was obtained. The results show that when the semi-angle of drawing dies is6°～ 8°,the bearing length is 4. 5 ～ 5. 5 mm,and the processing rate is 20% ～ 25%,the core wire distortion of Nb Ti/Cu multi-filamentary superconducting wires has a minimum value.

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趙圣澤;劉君;楊海瑛;郭荻子;羅媛媛;尹雁飛;.模具對(duì)Nb Ti/Cu超導(dǎo)線集束拉拔芯絲畸變的影響[J].鈦工業(yè)進(jìn)展,2020,37(5):12-17.

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  • 在線發(fā)布日期: 2020-11-09
  • 出版日期: 2020-10-25