Forming method of micro heat pipe with compound structure of sintered wick on grooved substrate
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- 作者：Xibing Li ; Mingjian Li ; Ming Li ; Ruchen Wu ; Yingsi Wan…
- 刊名：Heat and Mass Transfer
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：52
- 期：3
- 页码：581-593
- 全文大小：5,907 KB
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Mingjian Li (1)
Ming Li (1)
Ruchen Wu (1)
Yingsi Wan (1)
Tian Cheng (1)
1. School of Mechanical Engineering, Qiqihar University, Qiqihar, 161006, China - 刊物类别：Engineering
- 刊物主题：Engineering Thermodynamics and Transport Phenomena
Industrial Chemistry and Chemical Engineering
Thermodynamics
Physics and Applied Physics in Engineering
Theoretical and Applied Mechanics
Engineering Fluid Dynamics - 出版者：Springer Berlin / Heidelberg
- ISSN：1432-1181
文摘
Micro heat pipes (MHPs) with excellent heat transfer performance have been the ideal radiating components to meet increasingly higher requirements posed by high heat-flux products. Based on MHPs’ working principle, this study deduced capillary limit of a novel MHP with compound structure of sintered wick on grooved substrate, and probed into its forming mechanism: first, high-speed oil-filled spinning was applied to fabricating micro grooves, with optimal spinning and drawing speeds determined; then a mini-type vibration machine was used to help fill copper powders fast and uniformly, with appropriate sintering temperature and time fixed; the manufacturing method that integrates vacuum-pumping–cold-welding with secondary-degassing–cold-welding to increase vacuumizing efficiency. The results of experiments on its heat transfer performance show that the MHPs with sintered-wick-on-grooved-substrate structure fabricated through the proposed forming method can not only acquire much better heat transfer performance, but have advantages such as higher productivity and lower cost.