【摘要】 根据触头材料电弧侵蚀的开断实验及实验后触头表面的微观分析，发现触头表面电弧侵蚀形貌特征与电弧力有直接关系．通过进一步研究，提出了电弧力是导致液态金属流动和形成液态喷溅状、斑点状形貌特征的主要原因，并进行了深入的理论分析．更多还原

【Abstract】 According to the breaking experiments of arc erosion and microanalysis of the tested contact,the direct relations of are erosion morphology features with electrical arc forces is found.Two kinds of morphology features are caused by splattering of melt droplets and spots.更多还原