DewSystem公司最近研制了一台轮对半自动磁粉探伤设备。按常规，要定期对使用中的铁路车轴进行表面裂纹检测。一件方法是用高度灵敏的磁粉探伤技术来探测各种疲劳裂纹。用环状线圈承载的高电流对车轴进行纵向磁化，有裂纹之处，磁场漏泄出车轴而形成磁极，吸起浮在液体中细散的 DewSystem recently developed a wheelset semi-automatic magnetic particle inspection equipment. As a general rule, the railway axles in service should be regularly tested for surface cracks. One method is to detect various types of fatigue cracks using highly sensitive magnetic particle inspection techniques. High-current toroidal coil carried by the longitudinal magnetization of the axle, there are cracks where the magnetic field leakage out of the axle and the formation of magnetic pole, the absorption of floating in the liquid fine scattered