粗晶/细晶CuCr50触头材料的电弧运动行为及其烧蚀特性
刘彪, 王军, 袁召, 王哲, 常延丽, 李青山

Arc Motion Behavior and Ablation Characteristics of Coarse-grained/Fine-grained CuCr50 Contact Materials
LIU Biao, WANG Jun, YUAN Zhao, WANG Zhe, CHANG Yanli, LI Qingshan
表2 粗晶/细晶CuCr50触头燃弧前1 ms阴极斑点的移动速度和移动至触头边缘的时间
Table 2 Coarse-grained/fine-grained CuCr50 contacts 1ms before arcing, cathode spot movement speed and moving to contact edge time
Contact typeCurrent / kATime1 / msDiffusion speed / m·s-1Time2 / ms
Coarse-grained CuCr50216.263.22
59.202.53
812.631.92
1517.781.47
Fine-grained CuCr50317.232.91
68.832.55
910.172.01
1516.901.55