Szymanski Pawel, Mikielewicz Dariusz
Faculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland.
Materials (Basel). 2022 Feb 21;15(4):1609. doi: 10.3390/ma15041609.
The aim of this review is to present the recent developments in heat pipe production, which respond to the current technical problems related to the wide implementation of this technology. A novel approach in HP manufacturing is to utilise hi-tech additive manufacturing techniques where the most complicated geometries are fabricated layer-by-layer directly from a digital file. This technology might be a solution to various challenges that exist in HP production, i.e., (1) manufacturing of complex or unusual geometries HPs; (2) manufacturing complicated and efficient homogenous wick structures with desired porosity, uniform pore sizes, permeability, thickness and where the pores are evenly distributed; (3) manufacturing a gravity friendly wick structures; (4) high customisation and production time; (5) high costs; (6) difficulties in the integration of the HP into a unit chassis that enables direct thermal management of heated element and decrease its total thermal resistance; (7) high weight and material use of the part; (8) difficulties in sealing; (9) deformation of the flat shape HPs caused by the high pressure and uneven distribution of stress in the casing, among others.
本综述的目的是介绍热管生产的最新进展，这些进展应对了与该技术广泛应用相关的当前技术问题。热管制造中的一种新方法是利用高科技增材制造技术，即从数字文件直接逐层制造最复杂的几何形状。这项技术可能是解决热管生产中存在的各种挑战的一种方法，即：（1）制造复杂或特殊几何形状的热管；（2）制造具有所需孔隙率、均匀孔径、渗透率、厚度且孔隙均匀分布的复杂且高效的均匀芯吸结构；（3）制造有利于重力的芯吸结构；（4）高度定制化和生产时间；（5）高成本；（6）将热管集成到单元机箱中存在困难，而该机箱应能对加热元件进行直接热管理并降低其总热阻；（7）部件重量大且材料用量多；（8）密封困难；（9）扁平形状的热管因外壳中的高压和应力分布不均而变形等。
