中国塑料 ›› 2024, Vol. 38 ›› Issue (3): 109-115.DOI: 10.19491/j.issn.1001-9278.2024.03.018

• 机械与模具 • 上一篇    下一篇

场协同扭转螺杆热输运性能的研究

代瑞1(), 潘威1, 黄士争1, 朱家威1, 曾宪奎1, 杨卫民2, 鉴冉冉1()   

  1. 1.青岛科技大学机电工程学院,山东 青岛 266061
    2.北京化工大学机电工程学院,北京 100029
  • 收稿日期:2023-08-31 出版日期:2024-03-26 发布日期:2024-03-28
  • 通讯作者: 鉴冉冉(1991—),男,副教授,主要从事高分子材料加工成型与先进制造技术,jianrr@foxmail.com
    E-mail:dr195253@163.com;jianrr@foxmail.com
  • 作者简介:代瑞(1999—),男,硕士研究生,主要研究方向为高分子材料加工成型与先进制造研究,dr195253@163.com
  • 基金资助:
    国家自然科学基金资助项目(52206095);山东省自然科学基金资助项目(ZR2021QE232)

Study on thermal transport performance of field⁃coordinated torsion screw

DAI Rui1(), PAN Wei1, HUANG Shizheng1, ZHU Jiawei1, ZENG Xiankui1, YANG Weimin2, JIAN Ranran1()   

  1. 1.College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China
    2.College of Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029,China
  • Received:2023-08-31 Online:2024-03-26 Published:2024-03-28
  • Contact: JIAN Ranran E-mail:dr195253@163.com;jianrr@foxmail.com

摘要:

应用Polyflow软件,采用数值模拟的方法对创新提出的场协同扭转螺杆在不同转速下的热输运特性进行了仿真分析,结合温度分布、对流换热系数、黏度、压力等参数对其热输运性能进行了系统研究,并与常规螺杆进行对比。结果表明,设置有扭转结构的场协同扭转螺杆温度均匀性得到改善,对流换热系数提高,强化了整个体系的传热效果,其中扭转元件串联排布的螺杆换热性能更优。并以三元乙丙橡胶(EPDM)为原料,采用扭转挤出技术结合机头径向温差、换热系数等参数对常规螺杆与场协同扭转螺杆的传热性能进行了实验研究。所得结果与仿真一致,证明了场协同扭转螺杆具有强化传热、改善塑化均匀性的特性。

关键词: 扭转元件排布, 换热性能, 对流换热系数, 塑化均匀性, 压力特性

Abstract:

The thermal transport characteristics of the innovatively proposed field⁃coordinated torsion screw at different rotational speeds were simulated and analyzed through numerical simulation using the Polyflow software, and their thermal transport performance was systematically investigated through combining parameters such as temperature distribution, convective heat transfer coefficient, viscosity, pressure, etc. and compared with conventional screws as well. The results indicated that the temperature uniformity of the field⁃coordinated torsion screw with a torsion structure was improved alone with an increase in the convective heat transfer coefficient. The heat transfer effect of the entire system was also strengthened, in which the screw B exhibited the optimal heat transfer performance. Taking EPDM as a raw material, an experimental investigation was performed for the heat transfer performance of the conventional screw and field⁃coordinated torsional screw using a torsional extrusion technology combined with the parameters such as radial temperature difference and heat transfer coefficient of the machine head. The obtained results were consistent with the simulation, proving that the field⁃coordinated torsion screw can strengthen heat transfer and improve plasticization uniformity.

Key words: torsion element layout, heat transfer performance, convective heat transfer coefficient, plasticization uniformity, pressure characteristics

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