Reasons Analysis on Corrosion of Au-plated Copper Contact Blocks
摘 要
针对某电池包连接器镀金黄铜连接片在湿热试验过程中发生腐蚀的现象,从连接片材料、电池包工艺设计等方面进行了分析。结果表明:连接片发生腐蚀主要是由于其表面镀层质量差,局部甚至漏镀,且厚度不足;电池包设计时连接片与电池正极之间存在电位差进一步加速了连接片的腐蚀;另外,电池包的封装胶水在高温高湿环境下可能释放出含磷酸类物质从而诱发连接片的腐蚀。最后针对上述原因对连接器的质量控制提出了系列建议。
Abstract
For the corrosion phenomenon of a batch of battery pack connector Au-plated copper contact blocks during humid heat test, a variety of inspection and analysis on the material and manufacture design of the contact blocks were conducted. The results show the corrosion of the contact blocks was mainly because the surface plating quality was poor with local skip plating and insufficient thickness. Furthermore, the potential difference between the contact block and the anode accelerated the corrosion. Beside, the phosphoric acid released from the packaging gule under the environment of high temperature and high humidity, would also induce the corrosion of the contact blocks. Finally, a series of quality control suggestions of the contactor were proposed according to above reasons.
中图分类号 TG178 DOI 10.11973/lhjy-wl201510016
所属栏目 质量控制与失效分析
基金项目 工业产品环境适应性国家重点实验室开放基金资助项目
收稿日期 2014/7/3
修改稿日期
网络出版日期
作者单位点击查看
备注冯皓(1972-),女,高级工程师。
引用该论文: FENG Hao,HU Li-fen,LIU Xin. Reasons Analysis on Corrosion of Au-plated Copper Contact Blocks[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2015, 51(10): 740~742
冯皓,胡利芬,刘鑫. 电池包连接器镀金黄铜连接片腐蚀原因分析[J]. 理化检验-物理分册, 2015, 51(10): 740~742
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】孔宪宝.电连接器可靠性设计[J]. 机电元件,1996(16): 32-39.
【2】SLADE P G. Electrical contacts principles and applications[M]. New York: New York Cutler Hammer Horseheads,1999: 15-20.
【3】LIANG Y N,ZHANG J G,LIU J J. Identification of inorganic compounds in dust collected in Beijing and their effects on electric contacts[C]// Proceedings 43rd IEEE Holm Conference on Electrical Contacts. Philadelphia: IEEE Press,1997: 315-327.
【4】ZHANG J G,LIANG Y N,WAN J W,et al.Analysis of organic compounds in airborne dust collected in Beijing[C]// Proceedings 44th IEEE Holm Conference on Electrical Contacts.Arlington: IEEE Press,1998: 166-171.
【5】GB/T 2423.3-2006电工电子产品环境试验 第2部分:试验方法 试验Cab:恒定湿热试验[S].
【6】GB/T 5231-2001加工铜及铜合金化学成分和产品形状[S].
【7】周怡琳.同轴连接器镀金层磨损分析方法的研究[J].电子学报,2006(10): 1852-1855.
【8】王海兰.磷酸三甲苯酯的职业危害与防护[J].现代职业安全,2013(12): 104-105.
【2】SLADE P G. Electrical contacts principles and applications[M]. New York: New York Cutler Hammer Horseheads,1999: 15-20.
【3】LIANG Y N,ZHANG J G,LIU J J. Identification of inorganic compounds in dust collected in Beijing and their effects on electric contacts[C]// Proceedings 43rd IEEE Holm Conference on Electrical Contacts. Philadelphia: IEEE Press,1997: 315-327.
【4】ZHANG J G,LIANG Y N,WAN J W,et al.Analysis of organic compounds in airborne dust collected in Beijing[C]// Proceedings 44th IEEE Holm Conference on Electrical Contacts.Arlington: IEEE Press,1998: 166-171.
【5】GB/T 2423.3-2006电工电子产品环境试验 第2部分:试验方法 试验Cab:恒定湿热试验[S].
【6】GB/T 5231-2001加工铜及铜合金化学成分和产品形状[S].
【7】周怡琳.同轴连接器镀金层磨损分析方法的研究[J].电子学报,2006(10): 1852-1855.
【8】王海兰.磷酸三甲苯酯的职业危害与防护[J].现代职业安全,2013(12): 104-105.
相关信息