无损探伤是近年来发展起来的一项新技术。它与破坏试验的区别是对检查对象的结构没有损害,所以是值得推广的一种新方法。无损探伤的检测内容主要有以下三个方面;检查材料内在的孔洞、裂纹的物理状态;检查材质的成分、硬度、组织性能;检查材质的劣化、发生残余应力的材质状态。为了获得以上三方面的数据,首先要对材料加载,检测材料对此作用的反应,以判断材料的状态。对材料的加载是以输入能量 Nondestructive testing is a new technology developed in recent years. It is the difference between the destruction test and the structure of the inspection object without damage, so it is worth promoting a new method. The content of nondestructive testing is mainly in the following three aspects: checking the physical state of holes and cracks in the material; checking the composition, hardness and organizational performance of the material; checking the deterioration of the material and the material state of the residual stress. In order to obtain the above three aspects of the data, we must first load the material to detect the reaction of materials to determine the state of the material. The loading of materials is based on input energy