金属加工（热加工）Issue(8)：20-27,8.
感应钎焊工艺对无氧铜套管结构部件钎着率、界面显微组织和力学性能的影响
Impact of induction brazing on brazing rate,interfacial microstructure,and mechanical properties of oxygen-free copper casing components
摘要
Abstract
As a critical heat transfer component in water cooling systems,the welding quality of Oxygen-free copper cannula directly impacts system reliability and cooling efficiency.However,post-welding defects like porosity remain unresolved.This study examines induction brazing's effects on brazing rate,interfacial microstructure,and mechanical properties of oxygen-free copper casings.Results indicate that at 720℃ peak temperature with 5s,15s,and 30s holding times,brazing rates are good,but small-sized porosity appears at 15s and significant solder overflow at 30s.At 660℃,the weld bottom exhibits poor brazing rates and C-arc porosity but no overflow.Conversely,at 790℃ with 5s holding time,brazing rates remain high,but severe C-arc porosity and solder diffusion occur.Overall,moderately increasing the peak temperature can reduce the pore size and enhance the brazing rate.However,overheating can lead to overflow,and an excessively long holding time can result in C-arc porosity and overflow defects.The optimal parameters are 720℃ peak temperature with 5s holding time.The welding process will not have an impact on the overall mechanical properties of the casing structural components.关键词
感应钎焊/无氧铜套管/钎着率/显微组织/力学性能Key words
induction brazing/oxygen-free copper cannula/brazing rate/microstructure/mechanical properties引用本文复制引用
罗梅,尚书文,张知航,武琪,杨健..感应钎焊工艺对无氧铜套管结构部件钎着率、界面显微组织和力学性能的影响[J].金属加工（热加工）,2026,(8):20-27,8.基金项目
国家自然科学基金面上项目(52075035). （52075035）
