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CFETR窗口领圈电子束焊接真空室设计
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摘要
CFETR窗口领圈具有非常复杂的三维结构,由于其尺寸庞大,在窗口与领圈焊接完成之后不能进行整体加工,因此,要求领圈的焊接具有变形小,焊接精度高,焊接质量可靠等特点。真空电子束焊接作为一种微变型的高能束焊接方法,能够保证真空室领圈的焊接质量,因此,将搭建一套真空电子束焊接系统用于真空室窗口领圈焊接。真空电子束焊接系统由真空室、电子束焊枪、运动系统、抽气系统等主要部件组成。由于真空室尺寸为6x5x5m,其工作稳定性非常重要,因此本文对真空室结构进行了设计,通过ansys有限元分析对其工作状态进行了模拟分析,对其结构进行了优化,其结果为真空室的设计提供了参考。
CFETR window collar has a very complex three-dimensional structure,because of its large size, in the window and collar welding can not be completed after the overall processing, therefore, requires the welding ring with deformation of small,high precision welding, welding quality and reliable. As a kind of high-energy beam welding method, vacuum electron beam welding can ensure the welding quality of the collar of the vacuum chamber. Therefore, a vacuum electron beam welding system will be used to weld the window collar of the vacuum chamber. Vacuum electron beam welding system consists of vacuum chamber, electron beam welding gun,movement system, pumping system and other major components. Because the size of the vacuum chamber is 6x5x5 m, its working stability is very important. Therefore, the structure of the vacuum chamber is designed and its working state is simulated and analyzed by ansys finite element analysis. The structure of the vacuum chamber isoptimized. The design provides a reference.
引文
[1]达道安.真空设计手册(第3版)[M].北京:国防工业出版社,2004.686-688.
    [2]蔡立君,刘德权,冉红,等离子体破裂时HL–2M真空室的结构应力分析[J].核聚变与等离子体物理,2011,31(2):150-153.
    [3]梁俊涛,张莉,梁涛.基于ANSYS Workbench的工装结构设计与优化[J].设计与研究,2014(2):21-22.
    [4]王欲知,陈旭.真空技术[M].北京:北京航空航天大学出版社,2007.

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