【摘要】 作者用自振频率为10MH_z的力传感器发现了放电力存在高频振荡的新现象,放电力的第一个峰值出现于放电开始后不久,用计算机对放电点的温度场进行数值求解表明,电极被加热熔化或汽化的主要原因是热传导。强大的放电冲击力可将熔化物冲溅出熔坑,在放电热汽化沸腾力和放电冲击力的综合作用下,电极材料的抛出呈现为随机过程。更多还原

【Abstract】 New phenomena of high frequency vibratory have been observed in theaction of discharge force with a 10MHz force-sensor.The first peak of dischargeforce usually arises immediately after the beginning of spark.Thermo-fieldof discharge point has been calculated with a computer program.The elect-rodes are melted or gasified mainly by thermoconductive effect.The impulsiveforce of discharge may burst out the melting material.Under the combina-tive action of heat and force,the erosion of electrode material appears to bea stochastic process.更多还原