聚合物阵列微沟槽吸液芯结构热压成形及机理研究

doi:10.3901/JME.2025.22.080

机械工程学报 ›› 2025, Vol. 61 ›› Issue (22): 80-87.doi: 10.3901/JME.2025.22.080

• 材料科学与工程 • 上一篇

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聚合物阵列微沟槽吸液芯结构热压成形及机理研究

唐恒¹, 黄强¹, 伍春霞², 孙亚隆³, 汤勇^1,2

1. 深圳大学机电与控制工程学院深圳 518000;
2. 华南理工大学机械与汽车工程学院广州 510640;
3. 郑州大学机械与动力工程学院郑州 450001

收稿日期:2024-11-07 修回日期:2025-06-02 发布日期:2026-01-10
作者简介:唐恒,男,1989年出生,博士,副教授/特聘研究员,博士研究生导师。主要研究方向为表面功能结构制造、微结构制造。E-mail:tangheng@szu.edu.cn
伍春霞(通信作者),女,1995年出生,博士研究生。主要研究方向为微纳结构制造、特种加工制造。E-mail:1449847434@qq.com
汤勇,男,1962年出生,博士,教授,博士研究生导师。主要研究方向为表面功能结构制造、两相传热技术。E-mail:ytang@szu.edu.cn
基金资助:
国家自然科学基金(52475481,52235011); 深圳大学2035追求卓越研究计划(2023B007)资助项目。

Research on the Fabrication and Hot-pressing Forming Mechanism of Polymer Array Micro-groove Wick Structure

TANG Heng¹, HUANG Qiang¹, WU Chunxia², SUN Yalong³, TANG Yong^1,2

1. College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518000;
2. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640;
3. School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001

Received:2024-11-07 Revised:2025-06-02 Published:2026-01-10

摘要/Abstract

摘要： 针对柔性聚合物均热板沟槽吸液芯结构存在结构简单且传热性能较差等问题，提出二次热压成形工艺在聚合物表面制备阵列微沟槽吸液芯结构。首先，采用电火花加工技术制备表面具有阵列微沟槽结构的金属模具；随后，通过热压成形将金属模具表面结构转印至非晶合金表面，制备得到非晶合金模具；最后，通过热压成形将非晶合金模具表面结构转印至聚合物表面。通过改变热压成形的工艺参数，研究热压温度、热压压力以及热压时间对非晶合金模具以及聚合物表面结构填充性能及形状精度的影响。结果显示，非晶合金模具在热压成形中温度影响最为显著，最大填充率可达99.76%；聚合物表面热压成形时压力影响最大，最大填充率为97.71%。整体而言，二次热压成形后的整体填充率达到97.48%，实现了金属表面阵列微沟槽结构在聚合物表面的精确复制，该研究成果为聚合物均热板吸液芯结构的制备提供了一种新方法，同时也为相关领域的研究和应用提供了重要的参考和借鉴。

关键词: 吸液芯结构, 热压成形, 聚合物均热板, 非晶合金

Abstract: Addressing the issues of simplistic design and poor heat transfer in flexible polymer vapor chamber groove-wick structures,the secondary hot-pressing is employed to fabricate an array of micro-groove wick structures on polymer surfaces. Initially,a metal mold with micro-grooves is crafted using electrical discharge machining（EDM）. This mold’s surface structure is then transferred onto an amorphous alloy through hot-pressing, resulting in the creation of an amorphous alloy mold. Subsequently,the surface structure of the amorphous alloy mold is replicated onto the polymer surface via another hot-pressing step. The impacts of various hot-pressing parameters,including temperature,pressure,and time,on the filling performance and shape accuracy of both the amorphous alloy and polymer surface structures are investigated. The findings reveal that temperature plays a significant role during the hot-pressing of the amorphous alloy mold,achieving a maximum filling rate of 99.76%. In contrast,pressure exerts the greatest influence during the hot-pressing of the polymer surface,yielding a maximum filling rate of 97.71%. Ultimately,the two-step hot-pressing process attains an overall filling rate of 97.48%,enabling the precise replication of the metal surface’s array of micro-groove structures onto the polymer surface. This methodology offers a novel approach for fabricating wick structures in polymer vapor chambers and provides valuable insights and references for research and applications in related fields.

Key words: wick structure, hot-pressing, polymer vapor chamber, amorphous alloy

中图分类号:

TK124

唐恒, 黄强, 伍春霞, 孙亚隆, 汤勇. 聚合物阵列微沟槽吸液芯结构热压成形及机理研究[J]. 机械工程学报, 2025, 61(22): 80-87.

TANG Heng, HUANG Qiang, WU Chunxia, SUN Yalong, TANG Yong. Research on the Fabrication and Hot-pressing Forming Mechanism of Polymer Array Micro-groove Wick Structure[J]. Journal of Mechanical Engineering, 2025, 61(22): 80-87.

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聚合物阵列微沟槽吸液芯结构热压成形及机理研究

Research on the Fabrication and Hot-pressing Forming Mechanism of Polymer Array Micro-groove Wick Structure

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