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大连理工大学精细化工全国重点实验室智能材料前沿科学中心 大连 116024
大连理工大学化工学院 大连 116024
大连理工大学辽宁省高性能树脂材料技术创新中心 大连 116012
大连理工大学大连高性能树脂工程研究中心 大连 116012
Received:13 February 2026,
Accepted:15 April 2026,
Online First:20 May 2026,
Published:20 June 2026
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刘炳纲, 孙书研, 伊迪, 潘迪生, 全恩宇, 潘雨曦. 挤出机模块化结构管材环向增强机头的设计及有限元模拟分析. 高分子通报, 2026, 39(6), 900–909.
Liu, B. G.; Sun, S. Y.; Yi, D.; Pan, D. S.; Quan, E. Y.; Pan, Y. X. The design and finite element simulation analysis of a modular extruder head for circumferential reinforcement of pipes. Polym. Bull. (in Chinese), 2026, 39(6), 900–909.
刘炳纲, 孙书研, 伊迪, 潘迪生, 全恩宇, 潘雨曦. 挤出机模块化结构管材环向增强机头的设计及有限元模拟分析. 高分子通报, 2026, 39(6), 900–909. DOI: 10.14028/j.cnki.1003-3726.2026.26.074.
Liu, B. G.; Sun, S. Y.; Yi, D.; Pan, D. S.; Quan, E. Y.; Pan, Y. X. The design and finite element simulation analysis of a modular extruder head for circumferential reinforcement of pipes. Polym. Bull. (in Chinese), 2026, 39(6), 900–909. DOI: 10.14028/j.cnki.1003-3726.2026.26.074.
高分子材料在管材生产领域逐渐代替金属等成为最重要的原材料,仅通过改变高分子化学结构,添加玻璃纤维、碳纤维等材料共混的方式来提高管材性能已经不能满足要求。本研究以杂萘联苯聚芳醚树脂(PPESK)为研究对象,对挤出机常用的机头进行了修改,加入类似吹膜原理的环向增强装置来提升管材强度。利用Ansys-Polyflow软件对设计机头的环向扩张效果进行模拟和分析,在扩张角度为30°时,具有合适的环向扩张速度分量为3.51 cm/s,此时熔体仍能保持很好的流动速度,没有产生明显的涡流和滞留。环向扩张速度可以使熔体内的分子链偏离原来的流动方向形成沿轴向的取向分布,增大管材环向抗压能力。
Polymer materials have gradually replaced metals as the most important raw materials in the pipe production industry
leading to increasingly stringent requirements for pipe quality. However
improving pipe performance solely by modifying the chemical structure of polymers or incorporating fillers such as glass fiber and carbon fiber can no longer fully meet these demands. Taking poly(phthalazinone ether sulfone ketone) (PPESK) as an example
this study modifies a conventional extruder head by incorporating an annular expansion strengthening device
analogous to the principle of film blowing
to enhance pipe strength. The annular expansion effect of the designed extruder head is simulated and analyzed using Ansys-Polyflow. At an expansion angle of 30°
a suitable annular expansion velocity component of 3.51 cm/s is obtained
under which the melt maintains favorable flow characteristics without significant vortex or stagnation. The velocity component in the annular expansion direction causes the molecular chains within the melt to deviate from their original flow direction and form an orientation along the axial direction
thereby improving the circumferential stress resistance of the pipe.
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