高电压等级铜铬触头材料的制备  

Preparation of High Voltage Grade CuCr Contact Materials

作　　者：韩宁 李鹏 王小军 郭鹏 杨晓青 师晓云 吉德胜 雷星宇 HAN Ning;LI Peng;WANG Xiaojun;GUO Peng;YANG Xiaoqing;SHI Xiaoyun;JI Desheng;LEI Xingyu(Shaanxi Sirui Advanced Materials Co.,Ltd.,Xi′an 710000,China)

机构地区：[1]陕西斯瑞新材料股份有限公司,陕西西安710000

出　　处：《电工材料》2025年第1期31-35,共5页Electrical Engineering Materials

基　　金：“陕西省2021-2025年重点研发计划”及“两链”融合重点专项。

摘　　要：CuCr合金材料具有优异的开断、耐压、抗电弧烧蚀性,广泛应用于中高压真空灭弧室中作为触头材料。高电压等级触头材料主要解决间隙电压强度、耐电弧烧蚀和开断性能等。Cr含量越高,触头材料的硬度越大,耐压提高,但是开断性能下降;Cr颗粒越细小,越趋于球化,触头耐电弧烧蚀性能越好。采用真空自耗电弧熔炼,利用高温电弧将电极棒熔化并快速冷却凝固,制备出CuCr(50)具有气体含量低,显微组织弥散分布均匀及产品质量一致性优异。CuCr alloy material has excellent property of breaking,pressure resistance,and arc erosion resistance,witch is suitable for high voltage grade contact materials,so it is widely used as a contact material in medium and high voltage vacuum arc extinguishing chambers.The higher the Cr content,the greater the hardness of the contact material,the higher the pressure resistance,but the worse the breaking performance.The finer the Cr particles,the more they tend to spheroidize,and the better the arc erosion resistance of the contact.Using vacuum consumable arc melting and high-temperature arc melting to melt the electrode rod and quickly cool and solidify,CuCr(50)was prepared with low gas content,uniform microstructure dispersion distribution,and excellent product quality consistency.

关 键 词：高电压等级 CUCR触头材料 真空自耗电弧熔炼 

分 类 号：TM503[电气工程—电器]