机车车辆的车轴承受着很大的动态应力,随着新型机车的功率参数和现代列车行车速度的普遍提高,车轴承受的应力也越来越大。因此,对车轴的可靠性和检验的要求也相应提高。下面介绍民德机车车辆车轴的磁粉探伤的方法和设备。一、磁粉探伤法磁粉探伤是利用铁磁材料进行的,用于探测工件表面裂纹和紧靠表面的缺陷。探伤设备产生两个方向的磁力线:用于发现横向裂纹的 Locomotive vehicle bearing a lot of dynamic stress, with the new locomotive power parameters and the general increase of the speed of modern train traffic, the car bearing stress is also increasing. Therefore, the reliability of the axle and inspection requirements also increased accordingly. Here are the methods and equipment of magnetic particle inspection for the axle of Mindercar. First, the magnetic particle inspection Magnetic particle inspection is the use of ferromagnetic materials for detecting surface cracks and close to the surface defects. Flaw detection equipment to produce two lines of magnetic force: used to detect transverse cracks