我国特有的快速走丝电火花线切割机床,由于在整个加工过程中对钼丝反复使用,加之贮丝筒的频繁正、反向旋转,使钼丝在加工过程中,不但反复受到电腐蚀的损伤,还受到机械冲击性拉伸力的疲劳损耗影响,所以在切割过程中一旦机械传动状态或电气工艺参数不佳时,极易产生断丝故障。对此故障的处理,理想的是进行断丝讯号的 Because of the repeated use of molybdenum wire in the whole process and the frequent positive and negative rotation of the storage cylinder, the molybdenum wire is not only repeatedly electrocorrosive during the processing Damage, but also by mechanical impact tensile fatigue loss, so in the cutting process once the mechanical transmission state or poor electrical process parameters, it is easy to produce broken wire fault. The failure of this treatment, the ideal signal is broken wire