摘要
针对继电器中等电流性能直接影响系统运行可靠性的问题,采用电镜扫描和气氛分析对中等电流的失效原因进行了分析和研究,确定影响中等电流失效的原因为内部有机气氛和材料污染。为有效控制有机气氛含量,对相应的工艺环节和参数进行了试验设计(DOE),得出合理的真空度、温度和时间的控制方法;对触点材料的污染提出了解决方案。研究结果表明,通过DOE试验可找到继电器进行真空焙烘脱气处理的最佳温度和时间,有效抑制继电器内部气氛污染;通过工艺过程控制,可降低材料污染。最终改善继电器中等电流性能,提升产品质量。
The medium current performance of relays affects the reliability of the system operation directly.Aiming at this problem,electron microscopy scanning and atmosphere analysis were used to analyze the causes of failure of relays when switching medium current,and the conclusion is that the pollution of internal organic atmosphere and materials leads to this problem.To control the content of organic atmosphere effectively,a design of appropriate process steps and parameters was carried out by DOE experiment method,and the control method of reasonable degree of vacuum,temperature and time was finally obtained.The study also proposed the solution of contact material pollution.The results show that optimum vacuum baking degassing treatment temperature and duration can be found by DOE experiment,and the internal atmosphere pollution in relay can be inhibited effectively.Material pollution can be reduced by process control.Finally,it can improve the relay moderate current performance and product quality.
作者
肖斌
杨文英
石磊
翟国富
XIAO Bin;YANG Wenying;SHI Lei;ZHAI Guofu(School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China;Guizhou Zhenhua Qunying Relay Co.,Ltd.,Guiyang 550018,China)
出处
《电器与能效管理技术》
2018年第4期34-38,共5页
Electrical & Energy Management Technology
