Collecting electrode used for traveling wave tube and manufacture method thereof

A manufacturing method and collecting electrode technology, applied in the direction of traveling wave tube, non-luminescent electrode manufacturing, time-of-flight electron tube collector, etc., can solve the problems of easy falling off, poor thermal conductivity of coating film, hindering heat export, etc., and reach the melting point High, good thermal conductivity
CN101800145AInactive Publication Date: 2010-08-11HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
Publication Date
2010-08-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a collecting electrode used for a traveling wave tube and a manufacture method thereof. The collecting electrode used for the traveling wave tube comprises an oxygen-free copper inner core (1), wherein a graphite loading head (2) in a conical structure is nested inside one end of the oxygen-free copper inner core (1) near an collecting electrode opening, the contact part of the oxygen-free copper inner core (1) and the graphite loading head (2) is filled with welding flux (3), in addition, the oxygen-free copper inner core (1) and the graphite loading head (2) are connected in a brazing way, and a ring (4) which is made of ultraperm and used for preventing the pull cracks of the graphite loading head (2) caused by heat expansion of the oxygen-free copper inner core (1) is sheathed on the outer ring of one end of the oxygen-free copper inner core (1) provided with the graphite loading head (2). The oxygen-free copper inner core and the graphite loading head of the collecting electrode used for the traveling wave tube with the structure are connected in the brazing way, so good heat conductive performance of the collecting electrode is ensured, in addition, the front end of the graphite loading head is processed into a conical shape, and the invention is more favorable for the electron absorption.
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Description

technical field

[0001] The invention relates to the field of manufacturing of traveling wave tubes, in particular to a collector equipped with a graphite loading head and a manufacturing method thereof. Background technique

[0002] In a traveling wave tube, the beam of electrons emerges continuously from the slow wave after completing the interaction with the high frequency field. At this time, a special electrode is needed to collect them to ensure the normal operation of the traveling wave tube. This special electrode for collecting electrons is called the collector. The collector is bombarded by high-speed electrons during the process of collecting electrons. There are three types of electrons bombarded on the collector: one type of electrons directly enters the collector from the collector opening, disappears into the collector after reflection on the inner wall of the collector, and is exported by the collector in the form of heat; the second type of electrons flows f...

Claims

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