纤维增强高强高导铬锆铜弹簧触指  

Cr⁃Zr⁃Cu Spring Contact Finger with Fiber⁃reinforced High⁃strength and High⁃conductivity

作　　者：李家梅 袁佳 张实 贾一凡 苏谋 李伟 LI Jiamei;YUAN Jia;ZHANG Shi;JIA Yifan;SU Mou;LI Wei(Xi’an High Voltage Apparatus Research Institute Co.,Ltd.,Xi’an 710077,China;Xi’an XD Cable Co.,Ltd.,Xi’an 710082,China)

机构地区：[1]西安高压电器研究院股份有限公司,西安710077 [2]西安西电光电缆有限责任公司,西安710082

出　　处：《高压电器》2024年第12期264-268,共5页High Voltage Apparatus

摘　　要：螺旋弹簧触指是高压开关关键零部件之一,对高压开关设备的性能起着至关重要的作用。针对现有牌号铬锆铜弹簧触指高导电、但强度、硬度低的性能瓶颈,文中通过设计高铬质量分数(10%~18%)铬锆铜合金配方,结合原位生成纤维技术,利用形变强化、固溶强化、界面强化等多种材料强化方式,制备出一种纤维增强高强高导铬锆铜螺旋弹簧触指。结果表明,该新型铬锆铜弹簧触指抗拉强度达791 MPa,导电率89.7%IACS,显微维氏硬度192HV0.1,达到力学性能和电性能的良好配合,各项性能指标均优于现有牌号铬锆铜弹簧触指(C18150)。Spiral spring contact finger is one of the key parts of high voltage switchgear and plays a crucial role in the performance of high voltage switchgear.In view of such bottleneck as high conductivity but low strength and hardness performance of existing brand of Cr⁃Zr⁃Cu spring contact finger,a kind of new⁃type Cr⁃Zr⁃Cu spiral spring contact fin⁃ger with fiber reinforced high strength and high conductivity is produced by designing Cr⁃Zr⁃Cu alloy formula with high Cr content(10%⁃18%),combining with in⁃situ generation fiber technology and using such multiple material re⁃inforcement modes as deformation strengthening,solid⁃solution strengthening and interface strengthening.The result shows that the tensile strength,conductivity and micro vickers hardness of the new⁃type Cr⁃Zr⁃Cu spring contact fin⁃ger reach 791 MPa,89.7%IACS and 192HV0.1 respectively,reach good coordination of both mechanical and electri⁃cal performance and each performance data is superior to existing brand of Cr⁃Zr⁃Cu spring contact finger(C18150).

关 键 词：高铬铬锆铜 纤维增强 高强度 高导电 弹簧触指 

分 类 号：TM643[电气工程—电力系统及自动化] TM503.5