1.射线照相工艺的现状X射线胶片的分类早在工业射线照相技术的初期,业已成为一个重要的课题。这是因为对于高质量的探伤来说,使用快速胶片的优势,必定受到胶片清晰度的影响。通过多年的国内外标准化工作,发现下列一些大的胶片类型及其标准的分类(见表1)。对不同分类方法、分类结果和相应的使用标准进行比较,可以看出,类似的应用条件需要相同类型的 1. The Current Situation of Radiography Processes The classification of X-ray films has long been an important topic in the early days of industrial radiography. This is because the advantages of using instant film for high-quality testing are necessarily influenced by the sharpness of the film. After years of standardization work at home and abroad, I found the following major film types and their standard classification (see Table 1). Comparing different classification methods, classification results and corresponding usage criteria, it can be seen that similar application conditions require the same type of