平板铝热管微沟槽吸液芯的制备及毛细性能研究

doi:10.3901/JME.2019.06.186

机械工程学报 ›› 2019, Vol. 55 ›› Issue (6): 186-193.doi: 10.3901/JME.2019.06.186

• 可再生能源与工程热物理 • 上一篇下一篇

平板铝热管微沟槽吸液芯的制备及毛细性能研究

唐恒¹, 汤勇^1,2, 万珍平², 陆龙生², 伍晓宇¹, 鲁艳军¹

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

收稿日期:2018-06-03 修回日期:2018-12-15 出版日期:2019-03-20 发布日期:2019-03-20
通讯作者: 汤勇(通信作者),男,1962年出生,博士,教授,博士研究生导师。主要研究方向为微制造、表面功能结构制造。E-mail:ytang@scut.edu.cn
作者简介:唐恒,男,1989年出生,助理教授。主要研究方向为微制造、微热管制造。E-mail:tanghengxtu@163.com;万珍平,男,1971年出生,博士,教授,博士研究生导师。主要研究方向为现代加工理论与技术、面向节能与新能源的表面功能结构制造。E-mail:zhpwan@scut.edu.cn;伍晓宇,男,1963年出生,博士,教授,硕士研究生导师。主要研究方向为微细加工技术、微纳功能结构制造。E-mail:wuxy@szu.edu.cn
基金资助:
国家自然科学基金（51575360，51805334）和广东省协同创新与平台环境建设专项（2016A040403043）资助项目。

Fabrication and Capillary Performance of Micro-grooved Wicks for Aluminium Flat-plate Heat Pipes

TANG Heng¹, TANG Yong^1,2, WAN Zhenping², LU Longsheng², WU Xiaoyu¹, LU Yanjun¹

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

Received:2018-06-03 Revised:2018-12-15 Online:2019-03-20 Published:2019-03-20

摘要/Abstract

摘要： 采用犁切-挤压（P-E）和表面化学加工相结合的方法制备出一种新型的铝沟槽吸液芯结构，通过毛细上升红外测试方法对其毛细性能进行测试表征，研究不同的CuCl₂溶液浓度和浸泡时间对吸液芯结构毛细性能的影响。研究结果表明，化学加工后的铝沟槽吸液芯的毛细性能显著提高，其最大毛细上升高度可达49.3 mm，相比于未经化学加工的犁切沟槽，其毛细上升高度提高约79.3%；当CuCl₂溶液浓度超过1 mol/L时，浸泡时间和溶液浓度对铝沟槽吸液芯的毛细压力影响较小。该方法能够简单、有效的提高铝沟槽吸液芯的毛细性能，为平板铝热管吸液芯的制备提供了一种新手段。

关键词: 沟槽吸液芯, 毛细性能, 平板铝热管

Abstract: A novel micro V-grooves wick, fabricated by ploughing-extrusion (P-E) method and then surface treated by chemical machining, is developed for enhancing the performance of aluminium flat-plate heat pipes (AFHPs). Capillary rise tests with acetone are performed to characterize the capillary force of the wick structures. An infrared (IR) thermal imaging method is utilized to monitor the capillary rise processes. The effects of solution concentration and immersion time on the capillary force are investigated. Experimental results indicate that the capillary rise height of the etched aluminium grooved wicks is substantially higher than that of non-etched wick. The maximum capillary rise height of etched aluminium grooved wicks is 49.3 mm-an increase of approximately 79.3% compared to the one with no chemical machining. Additionally, the concentration and immersion time have a minimal effect on the capillary performance of grooved aluminium wicks when the concentration of CuCl₂ solution was more than 1 mol/L. All the results demonstrate that the combination of P-E process and chemical machining technology is a convenient and effective means to enhance the capillary performance of grooved aluminium wicks and the heat transport capability of AFHPs.

Key words: aluminum flat-plate heat pipes, capillary performance, grooved wick

中图分类号:

TK124

唐恒, 汤勇, 万珍平, 陆龙生, 伍晓宇, 鲁艳军. 平板铝热管微沟槽吸液芯的制备及毛细性能研究[J]. 机械工程学报, 2019, 55(6): 186-193.

TANG Heng, TANG Yong, WAN Zhenping, LU Longsheng, WU Xiaoyu, LU Yanjun. Fabrication and Capillary Performance of Micro-grooved Wicks for Aluminium Flat-plate Heat Pipes[J]. Journal of Mechanical Engineering, 2019, 55(6): 186-193.

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平板铝热管微沟槽吸液芯的制备及毛细性能研究

Fabrication and Capillary Performance of Micro-grooved Wicks for Aluminium Flat-plate Heat Pipes

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