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Study on tightening characteristics of flareless pipe joint assembly process
  • +1
  • jie tang,
  • Zhenhua Liao,
  • Peixin Yang,
  • jie zeng
jie tang
Yanshan University

Corresponding Author:tangjie_cauc@163.com

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Zhenhua Liao
Civil Aviation University of China
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Peixin Yang
Civil Aviation University of China
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jie zeng
Civil Aviation University of China
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Abstract

The assembly process of flareless pipe joints is very important for the sealing performance of hydraulic pipeline system. Based on the theory of contact mechanics, a theoretical model of the assembly process of pipe joints is established to simulate the extrusion molding process of flareless pipe joints. It is found that tightening torque is an important factor affecting the sealing performance of pipe joints. By comparing the changes of the contact stress between the sleeve and the pipe joint under different tightening tortures, combined with the mechanical transfer and deformation results of the contact surface, the results show that the fitting situation of the sleeve and the pipe is good when the expansion pressure is 180Mpa, and the sealing performance of the pipe joint is good when the tightening tortures are between 15N·m and 18N·m.
03 Nov 2022Submitted to The Journal of Engineering
04 Nov 2022Submission Checks Completed
04 Nov 2022Assigned to Editor
04 Nov 2022Reviewer(s) Assigned
15 Jan 2023Review(s) Completed, Editorial Evaluation Pending
15 Jan 2023Editorial Decision: Revise Minor
28 Jan 20231st Revision Received
21 Feb 2023Submission Checks Completed
21 Feb 2023Assigned to Editor
21 Feb 2023Reviewer(s) Assigned
04 Mar 2023Review(s) Completed, Editorial Evaluation Pending
04 Mar 2023Editorial Decision: Accept