表面粗糙度对印刷电路板式换热器扩散焊接的影响研究
Research on the Effect of Roughness on Diffusion Bonding of Printed Circuit Heat Exchanger
DOI: 10.12677/MEng.2022.92018, PDF,   
作者: 赵婧婧：洛阳仁晟石化工程技术有限公司，河南 洛阳；李秋龙：洛阳船舶材料研究所，河南 洛阳
关键词: 印刷电路板式换热器；扩散焊接；316L不锈钢；粗糙度；PCHE； Diffusion Bonding； 316L Stainless Steel； Roughness
摘要: 印刷电路板式换热器的换热芯体是通过换热板片堆叠后真空扩散焊接而成，表面粗糙度是影响换热芯体扩散焊接性能的关键因素之一，本文以316L材料为试验对象开展试验分析研究，重点研究了板片表面粗糙度对换热器芯体扩散焊性能的影响规律，从抗拉强度和接头金相组织两个方面阐述了316L板片表面粗糙度对扩散焊接的影响情况，结果表明，随着板片表面粗糙度的减小，其扩散焊接性能逐渐提高，只有当316L板片表面粗糙度小于0.1时，其换热芯体的焊接性能方可满足印刷电路板式换热器的使用要求。
Abstract: The heat exchange core of the printed circuit heat exchanger (PCHE) is formed by vacuum diffusion bonding after the heat exchange plates are stacked, and the surface roughness is one of the key factors that affect the diffusion bonding performance of the heat exchange core. In this paper, the 316L material is taken as the test object to carry out the experimental analysis and research, and the emphasis is put on the influence of the plate surface roughness on the diffusion bonding performance of the heat exchanger core. The influence of 316L plate surface roughness on diffusion bonding is described from the aspects of tensile strength and joint microstructure. The results show that the performance of diffusion bonding is improved gradually with the decrease of plate surface roughness. Only when the 316L plate surface roughness is less than 0.1, the performance of the heat exchange core can meet the requirements of the PCHE.
文章引用：赵婧婧, 李秋龙. 表面粗糙度对印刷电路板式换热器扩散焊接的影响研究[J]. 冶金工程, 2022, 9(2): 140-147. https://doi.org/10.12677/MEng.2022.92018

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