稀土合金触头材料的制备及性能  

Preparation and Performance of Rare Earth Alloy Contact Material

作　　者：朱艳彩[1] 赵军[1] 王海涛[1] 

机构地区：[1]河北工业大学,天津300130

出　　处：《低压电器》2010年第8期1-3,8,共4页Low Voltage Apparatus

基　　金：河北省自然科学基金资助项目(E2009000063)

摘　　要：利用粉末冶金方法研制了一种新型触头材料AgSnO2-La2O3-Bi2O3。选择优化过程参数如下:48MPa成形,920℃×8h烧结;64MPa复压,150℃×0.5h去应力退火。所得的AgSnO2-La2O3-Bi2O3触头材料与AgSnO2(12)和AgCdO(12)的物理、机械性能相近,电性能优于AgSnO2(12)和AgCdO(12)。A new kind of contact material AgSnO2-La2O3-Bi2O3 was developed by using the powder metallurgy method. The optimum process parameters were as followed： forming at the pressure of 48 MPa,sintering at 920 ℃ for 8 h,repressing at the pressure of 64 MPa and annealing at 150 ℃ × 0. 5 h . The AgSnO2-La2O3-Bi2O3 contact material had similar physical and mechanical properties but better electrical performance than that of AgSnO2（12） and AgCdO（12）.

关 键 词：触头材料 稀土合金 性能 

分 类 号：TM504[电气工程—电器]