Industrial Engineering

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Causes and Countermeasures of Strong Vibration of Pipe End Thickener

Received: Apr. 04, 2019    Accepted: Jan. 03, 2020    Published: Jan. 13, 2020
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Abstract

The pipe end thickening machine is a pressure processing equipment for thickening the pipe end of plastic material. The process of thickening the tubing end is to heat one end of the tubing to a certain temperature, push it into the die hall, and close the die cylinder under the push of hydraulic oil to press the end of the pipe. Then, squeeze into the cylinder forward, and the extrusion head on the piston rod thickens the end of the pipe. Complete the thickening process at the end of the pipe. In the production process, due to the great pressure change of the hydraulic system, the vibration of the system is violent, resulting in pipeline cracking, which seriously affects the production. Through the analysis of hydraulic system of pipe end thickener, it is found that the fundamental cause of the system pressure relief vibration is that when the hydraulic system is unloading, the volume of the hydraulic cylinder unloading cavity is large and the energy is accumulated. The problem can be solved by adjusting the section where the actual stroke of the hydraulic cylinder is located in the total stroke to reduce the volume of the pressure relief chamber and the energy released when the pressure is unloaded.

DOI 10.11648/j.ie.20190302.12
Published in Industrial Engineering ( Volume 3, Issue 2, December 2019 )
Page(s) 27-31
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Hydraulic System, Vibration Pressure, Release

References
[1] Liu Shimei, Tan Jianping, Chen Hui, 300MN die forging hydraulic press hydraulic pressure system fault simulation study [J]. Forging Technology, 2011, 36 (2) 59/63.
[2] Yang Guichuan, Yu Jiang, Chen Wen, and so on. Study on the working pressure and working cylinder arrangement of large-scale die-forging hydraulic press [J]. Forging Technology, 2011, 36 (3) 77-79.
[3] Yang Guchuan, Yu Jiang, Chen Wen, et al. Study on frame structure of large die forging hydraulic press [J]. Forging Technology, 2010, 35 (3) 109/112.
[4] He Yanzhong, Chen Wenjia, Huang Jianmin, et al. Design of a new type of travel adjustment mechanism for press [J]. Forging Technology, 2010, 35 (3) 118/121.
[5] Yan Qingsong, Zhang tie, Tong Lei. QA35Y-30 hydraulic combined punching and shearing machine body improvement [J]. Forging Technology, 2010, 35 (4) 72/76.
[6] Han Yukun, Zhang Yunzhen, Wang Lixin, et al. Research on impact dynamic characteristics of 20 MN fast forging hydraulic press [J]. Forging Technology, 2010, 35 (4) 95/98.
[7] Duan Jun, Huang Minghui, Zhanlihua, etc. Research on synchronous balancing system of hydraulic press using PLC and PID [J]. Forging Technology, 2010, 35 (1) 77/80.
[8] Ruan Wei Ping, he Shi Zhen, Wang Enfu. Design analysis and application of hydraulic overload protection device for press [J]. Forging Technology, 2010, 35 (1) 81-83.
[9] Yao Chengyu, Zhao Jingyi, Yang Chenggang. Trouble Analysis and treatment of hydraulic Pneumatic system [M]. Beijing: chemical Industry Press 2009. 12.
[10] Fang Qing. Analysis of pressure-relief performance of CF-type liquid-filling valve [J]. Machine Tools & Hydraulic, 1998. 2.
[11] Zhang Dapeng, Wu patriotic, du Chunyan, et al. Development of control system for 63 MN forging hydraulic press [J]. Forging Technology, 2009, 34 (6) 109-111.
[12] Li Xinde. Hydraulic system fault diagnosis and maintenance technical manual. Beijing: China Electric Power Publishing House, 2009. 8.
[13] Shen Deliang. Causes and Countermeasures of Pipe burst in Marine hydraulic Piping. [J] Shipbuilding Technology, 1994. 10.
[14] Wisdom. Hydraulic system principle and common fault analysis of high pressure and large flow hydraulic press [J]. Machine tools and hydraulic pressure, 2017. 1.
[15] Wu Bingsheng, Mu Yinbing. Vibration diagnosis of hydraulic system of rolling mill [J]. Hydraulic and Pneumatic, 2014 (1): 128-130.
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  • APA Style

    Liu Tongyi. (2020). Causes and Countermeasures of Strong Vibration of Pipe End Thickener. Industrial Engineering, 3(2), 27-31. https://doi.org/10.11648/j.ie.20190302.12

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    ACS Style

    Liu Tongyi. Causes and Countermeasures of Strong Vibration of Pipe End Thickener. Ind. Eng. 2020, 3(2), 27-31. doi: 10.11648/j.ie.20190302.12

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    AMA Style

    Liu Tongyi. Causes and Countermeasures of Strong Vibration of Pipe End Thickener. Ind Eng. 2020;3(2):27-31. doi: 10.11648/j.ie.20190302.12

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  • @article{10.11648/j.ie.20190302.12,
      author = {Liu Tongyi},
      title = {Causes and Countermeasures of Strong Vibration of Pipe End Thickener},
      journal = {Industrial Engineering},
      volume = {3},
      number = {2},
      pages = {27-31},
      doi = {10.11648/j.ie.20190302.12},
      url = {https://doi.org/10.11648/j.ie.20190302.12},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ie.20190302.12},
      abstract = {The pipe end thickening machine is a pressure processing equipment for thickening the pipe end of plastic material. The process of thickening the tubing end is to heat one end of the tubing to a certain temperature, push it into the die hall, and close the die cylinder under the push of hydraulic oil to press the end of the pipe. Then, squeeze into the cylinder forward, and the extrusion head on the piston rod thickens the end of the pipe. Complete the thickening process at the end of the pipe. In the production process, due to the great pressure change of the hydraulic system, the vibration of the system is violent, resulting in pipeline cracking, which seriously affects the production. Through the analysis of hydraulic system of pipe end thickener, it is found that the fundamental cause of the system pressure relief vibration is that when the hydraulic system is unloading, the volume of the hydraulic cylinder unloading cavity is large and the energy is accumulated. The problem can be solved by adjusting the section where the actual stroke of the hydraulic cylinder is located in the total stroke to reduce the volume of the pressure relief chamber and the energy released when the pressure is unloaded.},
     year = {2020}
    }
    

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  • TY  - JOUR
    T1  - Causes and Countermeasures of Strong Vibration of Pipe End Thickener
    AU  - Liu Tongyi
    Y1  - 2020/01/13
    PY  - 2020
    N1  - https://doi.org/10.11648/j.ie.20190302.12
    DO  - 10.11648/j.ie.20190302.12
    T2  - Industrial Engineering
    JF  - Industrial Engineering
    JO  - Industrial Engineering
    SP  - 27
    EP  - 31
    PB  - Science Publishing Group
    SN  - 2640-1118
    UR  - https://doi.org/10.11648/j.ie.20190302.12
    AB  - The pipe end thickening machine is a pressure processing equipment for thickening the pipe end of plastic material. The process of thickening the tubing end is to heat one end of the tubing to a certain temperature, push it into the die hall, and close the die cylinder under the push of hydraulic oil to press the end of the pipe. Then, squeeze into the cylinder forward, and the extrusion head on the piston rod thickens the end of the pipe. Complete the thickening process at the end of the pipe. In the production process, due to the great pressure change of the hydraulic system, the vibration of the system is violent, resulting in pipeline cracking, which seriously affects the production. Through the analysis of hydraulic system of pipe end thickener, it is found that the fundamental cause of the system pressure relief vibration is that when the hydraulic system is unloading, the volume of the hydraulic cylinder unloading cavity is large and the energy is accumulated. The problem can be solved by adjusting the section where the actual stroke of the hydraulic cylinder is located in the total stroke to reduce the volume of the pressure relief chamber and the energy released when the pressure is unloaded.
    VL  - 3
    IS  - 2
    ER  - 

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Author Information
  • School of Mechanical Engineering, Shandong University of Technology, Zibo, China

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