一八九五年X射线管发明以来,X射线管的品种和制管技术有了很大发展。但至本世纪七十年代末,X射线管的材料和结构本身并未发生实质性的变化。最近国外将金属陶瓷封接技术与X射线管相结合,成功地研制出了一种新型的无损检测用金属陶瓷X射线管。这种新型管在工业上具有广泛的应用前景,因而获得了迅速的发展。国外称这种新型管为“新一代 X-ray tube invented in 1895, X-ray tube variety and tube technology has made great progress. However, by the end of the 1970s, the material and structure of the X-ray tube itself had not changed substantively. Recently, foreign countries will be metal-ceramic sealing technology and X-ray tube combination successfully developed a new nondestructive testing with cermet X-ray tube. This new type of pipe has a wide range of industrial applications prospects, which obtained rapid development. Abroad called this new type of pipe as a “new generation.”