一、前言 显象管是由多种材料组成。如黑白显象管由玻壳、电子枪(不锈钢电极、灯丝和氧化物阴极)、石墨乳、铝膜、荧光粉和消气剂等组成。这些材料表面上吸附大量气体分子,内部也溶解了部份气体分子。在管子排气过程中,经过烘烤除气、阴极分解和激活后,材料表面和内部大量气体? I. Introduction CRT is composed of a variety of materials. Such as black and white picture tube from the glass, electron guns (stainless steel electrode, filament and oxide cathode), graphite milk, aluminum film, phosphor and getter composition. These materials adsorb a large amount of gas molecules on the surface and also partially dissolve gas molecules inside. In the pipe exhaust process, after degassing baking, cathode decomposition and activation, a large number of gases on the surface and inside the material?