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提高膨胀波纹管挤毁强度的方法探讨

Oil Field Equipment(2015)

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Abstract
目前,通过降低膨胀波纹管Bauschinger效应和膨胀后残余应力等方法对提高波纹管外挤强度的作用有限.为了提高膨胀波纹管的力学性能,借鉴双层组合套管的设计方法,提出了双层组合波纹管设计的新方法.通过对双层膨胀波纹管的力学性能分析和管材优选研究,将(φ)215.9 mm双层波纹管的抗外挤强度提高至23.8 MPa,扩大了膨胀波纹管的技术应用范围.
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