一、前言我国电视工业迅速发展,需要大量长寿命的显象管。生产长寿命的显象管,关键是提高阴极组件的质量和管子在使用过程中有好的真空状况。要直接衡量成品显象管寿命较困难,因为显象管生产是一个比较复杂的综合性问题。所用材料、加工处理工艺、管内真空状况以及电子枪的结构,都直接影响管子的寿命。 I. Introduction The rapid development of China's television industry requires a large number of long-life CRT. The key to producing a long-life kinescope is to improve the quality of the cathode assembly and the tube to have a good vacuum during use. To directly measure the finished product picture tube life is more difficult, because the picture tube production is a more complex comprehensive problem. The materials used, the processing technology, the vacuum in the tube, and the structure of the electron gun all directly affect the life of the tube.