沟槽式微热管弯曲变形特性研究  

Research on characteristics of microgrooves heat pipe's cross-sectional deformation

作　　者：陈伟彬[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广州510640

出　　处：《机械设计与制造》2010年第8期133-135,共3页Machinery Design & Manufacture

摘　　要：沟槽式微热管具有良好的导热能力,是解决微电子高热流密度问题的关键元件之一在实际应用中,微热管常需进行弯曲加工以配合安装需求,弯曲变形对热管性能会产生不良影响。针对微热管弯曲变形过程建立了受力模型,并进行了相应的弯曲实验和分析,结果表明弯曲半径对弯管变形程度影响显著,弯曲半径越小,变形量越大;经过去应力退火的热管有利于提高弯管质量;弯曲角度对弯管变形影响甚小。Microgrooves heat pipe is one of the key components to solve the high heat flux problem in microelectronics applications for its excellent heat transfer performance.In practice,micro-heat pipe bending is often required to meet the installation requirements.Bending deformation of the heat pipe will have a negative impact on its heat transfer performance.A mechanical model for the process of bending deformation is established and the corresponding bending experiments and analysis are finished.The results show that the bend radius significantly affects the bend deformation, the smaller the bend radius, the greater the deformation;annealed heat pipe improves the bending quality;bending angle has little effect on bend deformation.

关 键 词：微热管 弯曲半径 塑性变形 椭圆率 

分 类 号：TH16[机械工程—机械制造及自动化] TG386.31[金属学及工艺—金属压力加工]