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针对电解铜阴极板导电杆钢包铜结构难以连接的问题,采用高频感应钎焊焊机,以Sn Cu0.7锡焊丝作为钎料进行了阴极板导电杆铜-钢异种金属的高频感应钎焊工艺研究。试验中采用Raytek FR1B红外测温系统实现对高频感应钎焊工艺温度的实时监测与控制,重点分析了高频感应钎焊工艺对导电杆钢包铜结构的质量及性能的影响,并观察分析了钎焊接头的微观组织和接头区域的成分。研究表明,以Sn Cu0.7锡焊丝作为钎料可以实现阴极板导电杆钢包铜结构的高频感应钎焊连接;获得的最佳工艺参数范围能够获得内外部质量、连接强度优良的接头;研究结果对进一步研究导电杆的导电性能及大批量生产阴极板导电杆具有重要意义。
In view of the difficulty of connecting the ladle copper structure of the conductive cathode rod of the electrolytic copper cathode, a high-frequency induction brazing welding machine was used to conduct the high-frequency induction soldering of copper-steel dissimilar metals with Sn Cu0.7 tin wire as a brazing filler metal Welding Technology Research. The experiment uses Raytek FR1B infrared temperature measurement system to realize the real-time monitoring and control of high-frequency induction brazing process temperature, focusing on the analysis of high-frequency induction brazing process on the quality and performance of the conductive rod ladle copper structure, and observed and analyzed The microstructure of the brazed joint and the composition of the joint area. The results show that the Sn Cu0.7 tin wire can be used as the brazing filler metal to achieve the high-frequency induction brazing connection of the steel plate with the conductive rod of the cathode plate. The optimum technological parameters obtained can obtain the joints with excellent internal and external quality and excellent connection strength. The results are of great significance for further study of the conductive properties of the conductive rod and the mass production of the conductive rod of the cathode plate.