稀土接插件合金研究

STUDY ON THE RE ALLOY USED FOR ELECTRICAL INSERT-PULL PIECES

研究主要成分为Cu、Al、Co，并添加适量稀土和其他微量元素，不含铍的接插件用合金。材料的典型性能：常温下，σb＝872MPa、E＝130GPa、Hv＝2620MPa、ρ＝0．08μΩm、σ-1＝239MPa（107循环未断）；200℃下，E＝121GPa、ρ＝0．101μΩm、应力松弛量为10％。它特别适用于大功率ASEA型继电器接插件，也可用于其他弹性元件。

A kind of RE conductive elastic alloy without Be element was studied, it was composed of Cu,Al, Co and a certain rare earth elements. The typical properties of the material are σb 872 Mpa, E 130 Gpa, Hv 2620 Mpa,ρ 0.086μΩm, σ-1 239 Mpa (unbroken circulated for 107 times) at the room temperature, and E 121 Gpa, ρ 0. 101μΩm,stress relaxation 10% at 200℃. It was suitable to be used in ASEA type high power relay as the elastic element of insert-pull pieces.