镍合金漆包线电阻脱漆微点焊工艺  

Micro-resistance spot welding process with enamel removal of nickel alloy enameled wire

作　　者：高晨光[1] 汪旭东[1] 刘旭辉[1] 宋新河[1] 付新菊[1] GAO Chenguang;WANG Xudong;LIU Xuhui;SONG Xinhe;FU Xinju(Beijing Institute of Control Engineering,Beijing 100190,China)

机构地区：[1]北京控制工程研究所,北京100190

出　　处：《焊接》2025年第4期78-83,共6页Welding & Joining

基　　金：国家重点研发计划资助项目(2020YFC2201002)。

摘　　要：【目的】旨在实现热式流量传感器的30μm镍合金漆包线的可靠连接。【方法】研究了电阻脱漆微点焊工艺实现镍合金漆包线焊接的可行性,分析了影响镍合金漆包线电阻微点焊的关键因素,试验分析了焊接工艺参数、焊点组织与性能,评价了焊接质量和漆皮去除情况。【结果】结果表明,纯镍焊盘材料具有较高的表面硬度、较低的电阻率和导热系数,适用于镍合金漆包线的点焊;以焊点强度为目标,经过对焊接压力、焊接电压和焊接时间的试验和系统分析,可获得力学性能可靠的接头,并能有效地去除漆包线漆皮。【结论】电阻脱漆微点焊工艺是实现30μm镍合金漆包线可靠连接的有效手段。[Objective]The aim is to realize reliable connection of 30μm nickel alloy enameled wire in thermal flow sensors.[Methods]The feasibility of welding nickel alloy enameled wire by micro-resistance spot welding process with enamel removal is studied.The key factors affecting the micro-resistance spot welding of nickel alloy enameled wire are analyzed.The welding process parameters,microstructure and properties of soldered joints are experimentally analyied,and the welding quality and enamel removal are evaluated.[Results]The results show that the pure nickel pad material has high surface hardness,low resistivity and low thermal conductivity,which is suitable for the spot welding of nickel alloy enameled wire.With the soldered joint strength as the target,through the systematic analysis and experiments of welding pressure,welding voltage and welding time,joints with reliable mechanical properties can be obtained,and the enamel of enameled wire can be effectively removed.[Conclusion]The micro-resistance spot welding process with enamel removal is an effective means to achieve reliable connection of 30μm nickel alloy enameled wire.

关 键 词：镍合金 漆包线 电阻微点焊 脱漆 工艺参数 

分 类 号：TG453[金属学及工艺—焊接]