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一、试制目的随着通讯、火箭、人造卫星、宇宙探测及粒子加速器等技术的飞速发展,对微波电子管提出了更高的要求。目前,在微波管中金属-陶瓷结构已普遍代替了金属-玻璃结构,因为前者的性能及可靠性要优越得多。微波管的制造工艺也相应地发生了变化,例如,排气过程中烘烤温度提高到600℃左右,测量真空用的玻璃壳电离管就显得不太适应。大家知道,由于管道阻力的影响,接在泵口的电离管,不能真
First, the purpose of trial With the rapid development of communications, rockets, satellites, space exploration and particle accelerators, microwave tubes put forward higher requirements. Currently, metal-ceramic structures have generally replaced metal-glass structures in microwave tubes because of their superior performance and reliability. Microwave tube manufacturing process has also changed accordingly, for example, the exhaust temperature during the baking process increased to about 600 ℃, measuring the glass with a vacuum tube ionization becomes less suitable. We all know that, due to the influence of pipeline resistance, the ionization tube connected to the pump port can not be real