渗透检测是无损检测中五大常规检测方法之一 ,属于非磁性材料表面检测方法 ,渗透检测在生产、检测中应用广泛 ,已成为无损检测重要的方法。在现场对工件进行检测时通常采用溶剂去除型着色方法 ,其优点适用于焊接件和表面光洁的零件检测 ,特别适用于大零件的局部检测。非批量零 Penetration testing is one of the five routine testing methods in non-destructive testing. It belongs to non-magnetic material surface testing methods. Penetration testing is widely used in production and testing. It has become an important non-destructive testing method. In the field of the workpiece when testing commonly used solvent removal type coloring method, the advantages apply to the welding parts and surface smooth parts detection, especially for large parts of the local testing. Non-batch zero