触头电侵蚀性能影响因素概述

Influence of Electrical Erosion on Contacts: A Review

介绍了Ag Ni、Ag C、Ag W、Ag Sn O_2、Ag Zn O等银基触头材料的电侵蚀性能,包括同种电流、电压条件下不同材料的侵蚀量大小顺序,侵蚀量与电流电压、开距、频率、添加剂之间的关系等。已有试验表明,银金属合金在小电流低电压下的侵蚀量一般为Ag C>Ag Ni>Ag W;银金属氧化物的侵蚀量大小顺序一般为Ag Cu O>Ag Cd O>Ag Zn O>Ag Sn O_2>Ag Yb_2O_3。

The e le ctrica l erosion perform ance o f silver-based contact m aterials such as A g N i, A g C , A g W ,A g S n 0 2 , A gZnO was presented, in c lu d in g the order o f erosion o f d iffe re n t m aterials under equal cu rre n t and voltagec o n d itio n s ,and the influ e n ce o f c u rre n t, volta ge, gap le n g th , frequency and a d ditive on erosion. The previousexperim ents show that the order o f silv e r m etal alloy erosion at low cu rre n t low voltage is generally AgC 〉 A g N i 〉A gW . The erosion o f s ilv e r m etal oxide is generally AgCuO〉 AgCdO 〉AgZnO 〉 AgSnO2 〉 AgYb2O3.