Collector inner core of space traveling wave tube and production technology of collector inner core

Abstract

The invention discloses a collector inner core of a space traveling wave tube and a production technology of the collector inner core. The collector inner core of the space traveling wave tube comprises an oxygen-free copper inner core body. A black chrome layer is arranged on the oxygen-free copper inner core body. The production technology of the collector core of the space traveling wave tube comprises the following processes of: sand blasting, electroplating, detection and vacuum annealing. By electroplating the black chrome layer on the oxygen-free copper inner core body and by using the product performance of the black chrome layer, the collector inner core of the space traveling wave tube and the production technology of the collector inner core have the advantages that the electron bombardment resisting capacity of the oxygen-free copper inner core body is improved; the backflow of secondary electrons is effectively suppressed and the collection efficiency of the electrons of the collector inner core of the traveling wave tube is improved; and the influence of low-energy electrons on the product performance of the space traveling wave tube is further eliminated.

Description

technical field [0001] The invention relates to the field of microwave vacuum electronic devices, in particular to an inner core of a space traveling wave tube collector and a manufacturing process thereof. Background technique [0002] Traveling wave tubes are widely used in radar, electronic warfare, satellite communication and precision guidance and other weapons and equipment. In recent years, the demand for traveling wave tubes has increased, and at the same time higher requirements have been put forward, including higher overall tube efficiency. Higher overall tube efficiency not only means reducing the power consumption of the traveling wave tube, reducing the weight and volume of the power supply, but also means providing space for improving the reliability and life of the device. This is especially important for airborne and space traveling wave tubes, because traveling wave tubes for such equipment are inevitably limited by power consumption, weight and volume. A...

AI Technical Summary

Problems solved by technology

When the space traveling wave tube is working, in order to prevent electrons from flowing back into the interaction area between electrons and microwaves, a sufficiently high voltage must be applied to the collector; A large amount of elastically scattered primary electrons; the existence of these primary electrons and secondary electrons will bring the following problems: On the one hand, these energetic electrons appear near the collectors at all levels, and when they hit the collectors again, they will cause considerable damage. Energy loss, thereby reducing the efficiency of the space traveling wave tube collector; on the other hand, the existence of a large number of low-energy secondary electrons may cause backflow, increase heat dissipation power and form noise, which will greatly affect the product performance of the traveling wave tube , which in turn affects the development of space traveling wave tubes

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