CuNi30材料在真空灭弧室上的应用研究  

Applicative Study of CuNi30 Material in Vacuum Interrupter

作　　者：张宝林 杨振生 李向东 ZHANG Baolin;YANG Zhensheng;LI Xiangdong(Shaanxi Baoguang Vacuum Electric Device Co.,Ltd.,Baoji 721000,China)

机构地区：[1]陕西宝光真空电器股份有限公司,陕西宝鸡721000

出　　处：《电工技术》2024年第17期126-128,132,共4页Electric Engineering

摘　　要：对CuNi30材料在真空灭弧室上的应用可行性进行了研究。分析了CuNi30、无氧铜、不锈钢材料的理化性能、表面清洗性能、钎料流散浸润性能、封接抗拉性能,并进行整管装配试验。试验结果表明,CuNi30材料的抗拉强度介于不锈钢和无氧铜之间,且其抗拉强度和延伸率在高温处理前后变化不大,而硬度略有下降。在通用钎焊规范下,CuNi30材料可直接与金属化瓷壳进行封接,其封接强度优于不锈钢与无氧铜过渡结构。装配的灭弧室经A组试验(振动试验、交变湿热试验)以及盐雾试验证明其可以满足真空灭弧室的使用需要。In this paper,the application feasibility of CuNi30 material in vacuum interrupter is studied.The physical and chemical properties,surface cleaning properties,flow wetting properties of brazing metal,sealing tensile properties and whole tube assembly of CuNi30,oxygen-free copper and stainless steel were tested.The results show that the tensile strength of CuNi30 is between that of stainless steel and oxygen-free copper,and the tensile strength and elongation of CuNi30 have little change before and after high temperature treatment,while the hardness decreases slightly.Under the general brazing standard,the CuNi30 material can be directly sealed with the metallized porcelain shell,and its sealing strength is better than that of the oxygen-free copper transition structure used in stainless steel.Group A tests(vibration test),alternating damp heat test and salt spray test show that the assembled interrupter can meet the needs of the vacuum interrupter.

关 键 词：CuNi30 真空灭弧室 盖板 钎焊 

分 类 号：TM561.5[电气工程—电器]