本文介绍用铍窗口、小焦点软X射线机对碳纤维复合材料进行检验的原理,对国内外X射线胶片性能进行了比较。文中还给出了合适的X射线透照参数(曝光曲线、材料厚度与底片黑度曲线),以及可能发现的缺陷类型等。最后采用渗透透视检验法对复合材料板材打孔后周围产生的分层进行了检验。 This paper introduces the principle of using a beryllium window and a small focus soft X-ray machine to inspect the carbon fiber composite material, and compares the performance of the X-ray film at home and abroad. The paper also gives the appropriate X-ray transillumination parameters (exposure curve, thickness of the material and the blackness of the backsheet), as well as the types of defects that may be found. Finally, the seepage test was used to test the delamination around the perforation of the composite plate.