电动工具用换向器材料—新型Cu-Cr-Zr合金研究  

A New Cu-Cr-Zr Alloy for Commutators Used in Electric Toolings

作　　者：俞金娥 丁雅琴[1] 俞虹 

机构地区：[1]机电部上海电器科学研究所

出　　处：《上海金属（有色分册）》1990年第6期15-22,共8页

摘　　要：本文研究了电动工具用换向器铜合金的成分、加工及热处理工艺,确定其成分为 Cu-Cr-Zr-Mg,导电率>85%IACS,抗拉强度450～550MN/m^2,表面洛氏硬度>83,延伸率>10%,软化温度480℃。This paper deals with the composition and technologies of working and heat-treatment of a copper alloy for manufacturing commutators used in el-ectric toolings.It is found that the alloy is composed of Cu,Cr,Zr and Mg with its electric conductivity greater than 85% IACS,tensile strength ran-ging between 450 and 550 MN/m^2,Rockwell hardness greater than 83,elongation greater than 10% and softening temperature around 480℃.

关 键 词：换向器 CU-CR-ZR合金 热处理 

分 类 号：TM303.2[电气工程—电机]