行波管电镀铜螺旋线高温处理后变色问题的实验分析  

Experiment Analysis of the Surface Color Change of Copper Electro-Plating for the Helix of TWT after Heat Treatment

作　　者：赵世柯[1] 于艳春[1] 李莉[1] 王立新[1] 

机构地区：[1]中国科学院电子学研究所空间行波管研究发展中心,北京100190

出　　处：《真空电子技术》2010年第5期22-24,共3页Vacuum Electronics

摘　　要：对行波管螺旋线电镀铜工艺进行了描述和分析,从实验上阐明了烧氢后螺旋线表面颜色变化的原因。实验分析表明,Ni-Cu合金化反应是导致颜色变化的主要原因,而合金化的结果使表面电导率、热导率大大降低,因此,电镀铜工艺不适合于行波管螺旋线的表面处理。在此基础上,对螺旋线镀铜工艺的其他技术方案进行了评述。Electro-plating experiments for the helix of traveling wave tube（TWT） were described and analyzed.Analytically,the surface color change of helix after a heat treatment could be attributed to the formation of Ni-Cu alloy,which would lead to a great decrease of surface thermal and electric conductivity.Therefore,copper electro-plating is not suitable for the surface treatment of TWT helix.Other technologies,such as copper ion-plating for helix,were briefly discussed for further investigations.

关 键 词：行波管 螺旋线 电镀铜 

分 类 号：TN124[电子电信—物理电子学]